MDL-77105 block_recentlyaccesseditems: Add 'nofilter' class

Add the `.nofilter` class for activity icons when the icon URL's
`filtericon` parameter is not set, so they get rendered as they are on
the recently accessed items block.

blocks/recentlyaccesseditems/classes/external/recentlyaccesseditems_item_exporter.php

@@ -51,17 +51,18 @@ protected static function define_related() {
     protected function get_other_values(renderer_base $output) {
         global $CFG;
         require_once($CFG->libdir.'/modinfolib.php');
-
+        $iconurl = get_fast_modinfo($this->data->courseid)->cms[$this->data->cmid]->get_icon_url();
+        $iconclass = $iconurl->get_param('filtericon') ? '' : 'nofilter';
         return array(
             'viewurl' => (new moodle_url('/mod/'.$this->data->modname.'/view.php',
                 array('id' => $this->data->cmid)))->out(false),
             'courseviewurl' => (new moodle_url('/course/view.php', array('id' => $this->data->courseid)))->out(false),
             'icon' => \html_writer::img(
-                get_fast_modinfo($this->data->courseid)->cms[$this->data->cmid]->get_icon_url(),
+                $iconurl,
                 get_string('pluginname', $this->data->modname),
-                ['title' => get_string('pluginname', $this->data->modname), 'class' => 'icon']
+                ['title' => get_string('pluginname', $this->data->modname), 'class' => "icon $iconclass"]
             ),
-            'purpose' => plugin_supports('mod', $this->data->modname, FEATURE_MOD_PURPOSE, MOD_PURPOSE_OTHER)
+            'purpose' => plugin_supports('mod', $this->data->modname, FEATURE_MOD_PURPOSE, MOD_PURPOSE_OTHER),
         );
     }