[frontend/course_admin] select more coherent icons (#790)

Fix #768

inginious/frontend/templates/course_admin/stats.html

@@ -61,7 +61,7 @@ <h3>{{ _("Tasks") }}</h3>
                                 class="fa fa-table"></i></a>
                             <a href="{{get_homepath()}}/admin/{{course.get_id()}}/submissions"
                                class="btn btn-secondary" title="{{ _('View all submissions') }}" data-toggle="tooltip"
-                            data-placement="bottom"><i class="fa fa-search"></i></a>
+                            data-placement="bottom"><i class="fa fa-files-o"></i></a>
                         </div>
                     </th>
                 </tr>
@@ -78,7 +78,7 @@ <h3>{{ _("Tasks") }}</h3>
                                 <td style="min-width:120px">
                             <div class="btn-group btn-group-sm" role="group">
                                 <a href="{{get_homepath()}}/admin/{{course.get_id()}}/submissions{{stats_progress[taskid]['url']}}" class="btn btn-secondary" title="{{_('View submissions') }}" data-toggle="tooltip"
-                                   data-placement="bottom"><i class="fa fa-search"></i></a>
+                                   data-placement="bottom"><i class="fa fa-file-code-o fa-fw"></i></a>
                         </td>
                 </tr>
                 {% endfor %}

inginious/frontend/templates/course_admin/student_list.html

@@ -130,7 +130,7 @@ <h4 class="modal-title"> {{ _("Upload course structure") }}</h4>
                                 <a href="{{get_homepath()}}/admin/{{course.get_id()}}/students?csv_audiences" class="btn btn-info btn-xs"
                                    title="{{ _('Download CSV') }}" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-table"></i></a>
                                 <a href="{{get_homepath()}}/admin/{{course.get_id()}}/submissions?audiences={{ audience_list | map('string') | join(',') }}" class="btn btn-secondary btn-xs"
-                                   title="{{ _('View all submissions') }}" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-search"></i></a>
+                                   title="{{ _('View all submissions') }}" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-files-o"></i></a>
                             </div>
                         </th>
                     </tr>
@@ -155,7 +155,7 @@ <h4 class="modal-title"> {{ _("Upload course structure") }}</h4>
                                         <a href="{{get_homepath()}}/admin/{{course.get_id()}}/edit/audience/{{audience['_id']}}" class="btn btn-primary" title="{{ _('Edit audience') }}" data-toggle="tooltip"
                                            data-placement="bottom"><i class="fa fa-edit"></i></a>
                                         <a href="{{get_homepath()}}/admin/{{course.get_id()}}/submissions{{audience['url']}}" class="btn btn-secondary" title="{{ _('View submissions') }}" data-toggle="tooltip"
-                                            data-placement="bottom"><i class="fa fa-search"></i></a>
+                                            data-placement="bottom"><i class="fa fa-file-code-o fa-fw"></i></a>
 
                                     </div>
                                 </td>

inginious/frontend/templates/course_admin/student_list_table.html

@@ -24,7 +24,7 @@
                         <a href="{{get_homepath()}}/admin/{{course.get_id()}}/students?csv_student" class="btn btn-info"
                            title="{{ _('Download CSV') }}" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-table"></i></a>
                         <a href="{{get_homepath()}}/admin/{{course.get_id()}}/submissions" class="btn btn-secondary"
-                           title="{{ _('View  all submissions') }}" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-search"></i></a>
+                           title="{{ _('View  all submissions') }}" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-files-o"></i></a>
                         {% if not is_staff and is_admin %}
                             <button type="button" data-toggle="modal" data-username="all students" data-type="all" data-target="#remove_modal" class="btn btn-warning remove_user" title="{{ _('Unregister all') }}"><i class="fa fa-user-times"></i></button>
                         {% endif %}
@@ -56,7 +56,7 @@
                 <td>
                     <div class="btn-group btn-group-sm" role="group">
                         <a href="{{get_homepath()}}/admin/{{course.get_id()}}/student/{{user['username']}}" class="btn btn-secondary" title="{{ _('View submissions') }}"
-                           data-toggle="tooltip" data-placement="bottom"><i class="fa fa-search"></i></a>
+                           data-toggle="tooltip" data-placement="bottom"><i class="fa fa-file-code-o fa-fw"></i></a>
                         {% if is_admin and not is_staff %}
                             <button type="button" data-username="{{user['username']}}" data-type="single" data-toggle="modal" data-target="#remove_modal" class="btn btn-warning remove_user" title="Unregister"><i class="fa fa-user-times"></i></button>
                         {% endif %}

inginious/frontend/templates/course_admin/submissions.html

@@ -15,7 +15,7 @@
             <li class="breadcrumb-item"><a href="{{get_homepath()}}/course/{{course.get_id()}}">{{ course.get_name(user_manager.session_language()) }}</a></li>
             <li class="breadcrumb-item"><a href="{{get_homepath()}}/admin/{{course.get_id()}}" title="{{ _('Administration') }}" data-toggle="tooltip" data-placement="bottom">
                 <i class="fa fa-user-secret"></i></a></li>
-            <li class="breadcrumb-item active"><a href="#"><i class="fa fa-cloud-download"></i> {{ _("Submissions") }} <span class="sr-only">{{ _("(current)") }}</span></a></li>
+            <li class="breadcrumb-item active"><a href="#"><i class="fa fa-file-code-o fa-fw"></i> {{ _("Submissions") }} <span class="sr-only">{{ _("(current)") }}</span></a></li>
         </ol>
     </nav>
 {% endblock %}
@@ -175,7 +175,7 @@ <h2>{{_("Submissions")}}</h2>
             <td>
                 <div class="btn-group btn-group-sm" role="group">
                     <a href="{{get_homepath()}}/submission/{{submission['_id']}}"
-                       class="btn btn-secondary" title="{{ _('View submission') }}" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-search"></i></a>
+                       class="btn btn-secondary" title="{{ _('View submission') }}" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-file-code-o fa-fw"></i></a>
                     <a href="{{get_homepath()}}/admin/{{course.get_id()}}/submissions?download_submission={{submission['_id']}}#alerts" class="btn btn-secondary" title="{{ _('Download submission') }}" data-toggle="tooltip"
                        data-placement="bottom"><i class="fa fa-download"></i></a>
                     {% if is_admin %}

inginious/frontend/templates/course_admin/task_dispensers/task_buttons.html

@@ -12,7 +12,7 @@
     </a>
     <a class="rename_task btn btn-secondary" href="{{get_homepath()}}/admin/{{course.get_id()}}/submissions?tasks={{taskid}}"
             title="{{ _('View submissions') }}"  data-toggle="tooltip" data-placement="bottom">
-        <i class="fa fa-search"></i>
+        <i class="fa fa-file-code-o fa-fw"></i>
     </a>
 
     <button class="delete_task btn btn-warning" data-toggle="modal" data-target="#delete_task_modal" onclick="dispenser_util_open_delete_modal(this)"

inginious/frontend/templates/course_admin/task_edit.html

@@ -29,7 +29,7 @@ <h2>
     <div class="pull-right">
         <div class="btn-group">
             <button class="btn btn-primary btn-success btn-sm task_edit_submit_button" type="button" onclick="studio_submit()"><i class="fa fa-save"></i> {{ _("Save changes") }}</button>
-            <a id="switch" class="btn-sm btn btn-info" href="{{get_homepath()}}/course/{{course.get_id()}}/{{taskid}}"><i class="fa fa-search"></i> {{ _("View task") }}</a>
+            <a id="switch" class="btn-sm btn btn-info" href="{{get_homepath()}}/course/{{course.get_id()}}/{{taskid}}"><i class="fa fa-eye"></i> {{ _("View task") }}</a>
         </div>
     </div>
 </h2>

inginious/frontend/templates/task.html

@@ -140,7 +140,7 @@ <h3> {{ _("Administration") }}</h3>
         {% endif %}
         <div class="list-group mb-3">
             <a class="list-group-item list-group-item-action list-group-item-info" href="{{ get_homepath() }}/admin/{{course.get_id()}}/submissions?tasks={{task.get_id()}}">
-                <i class="fa fa-tasks fa-fw"></i>&nbsp; {{ _("View submissions") }}
+                <i class="fa fa-files-o fa-fw"></i>&nbsp; {{ _("View submissions") }}
             </a>
             {% if user_manager.has_admin_rights_on_course(course) %}
                 <a class="list-group-item list-group-item-action list-group-item-info" href="{{ get_homepath() }}/admin/{{course.get_id()}}/edit/task/{{task.get_id()}}">