MDL-75837 gradereport_user: Update zero state strings

grade/report/user/lang/en/gradereport_user.php

@@ -30,7 +30,7 @@
 $string['gotopreviousreport'] = 'Go to previous user report';
 $string['pluginname'] = 'User report';
 $string['user:view'] = 'View your own grade report';
+$string['userreportdesc'] = 'View a user\'s grades, any feedback and the course total.';
+$string['userreports'] = 'User reports';
 $string['privacy:metadata:preference:gradereport_user_view_user'] = 'Whether to view report as current user or another user in the gradebook reports';
-$string['selectuser'] = 'Select a user to view their grades';
-$string['selectuserinstructions'] = 'By selecting a user you can view the grades by activity';
 $string['tablesummary'] = 'The table is arranged as a list of graded items including categories of graded items. When items are in a category they will be indicated as such.';

grade/report/user/templates/zero_state.mustache

@@ -25,7 +25,7 @@
     }
 }}
 <div class="zero-state mx-auto w-50 text-center my-6">
-    <img src="{{imglink}}" alt="{{#str}}selectuser, gradereport_user{{/str}}" aria-hidden="true" class="my-5">
-    <h3>{{#str}}selectuser, gradereport_user{{/str}}</h3>
-    <p>{{#str}}selectuserinstructions, gradereport_user{{/str}}</p>
+    <img src="{{imglink}}" alt="{{#str}}userreports, gradereport_user{{/str}}" aria-hidden="true" class="my-5">
+    <h3>{{#str}}userreports, gradereport_user{{/str}}</h3>
+    <p>{{#str}}userreportdesc, gradereport_user{{/str}}</p>
 </div>