MDL-46565 gradereport_*: renamed event string names

This makes the strings more descriptive and consistent.

AMOS START
  MOV [eventreportviewed, gradereport_grader],[eventgradereportviewed, gradereport_grader]
  MOV [eventreportviewed, gradereport_outcomes],[eventgradereportviewed, gradereport_outcomes]
  MOV [eventreportviewed, gradereport_overview],[eventgradereportviewed, gradereport_overview]
  MOV [eventreportviewed, gradereport_user],[eventgradereportviewed, gradereport_user]
AMOS END

grade/report/grader/classes/event/grade_report_viewed.php

@@ -42,6 +42,6 @@ class grade_report_viewed extends \core\event\grade_report_viewed {
      * @return string
      */
     public static function get_name() {
-        return get_string('eventreportviewed', 'gradereport_grader');
+        return get_string('eventgradereportviewed', 'gradereport_grader');
     }
 }

grade/report/grader/lang/en/gradereport_grader.php

@@ -28,7 +28,7 @@ $string['ajaxerror'] = 'Error';
 $string['ajaxfailedupdate'] = 'Unable to update [1] for [2]';
 $string['ajaxfieldchanged'] = 'The field you are currently editing has changed, would you like to use the updated value?';
 $string['ajaxchoosescale'] = 'Choose';
-$string['eventreportviewed'] = 'Grader report viewed';
+$string['eventgradereportviewed'] = 'Grader report viewed';
 $string['grader:manage'] = 'Manage the grader report';
 $string['grader:view'] = 'View the grader report';
 $string['pluginname'] = 'Grader report';

grade/report/outcomes/classes/event/grade_report_viewed.php

@@ -42,6 +42,6 @@ class grade_report_viewed extends \core\event\grade_report_viewed {
      * @return string
      */
     public static function get_name() {
-        return get_string('eventreportviewed', 'gradereport_outcomes');
+        return get_string('eventgradereportviewed', 'gradereport_outcomes');
     }
 }

grade/report/outcomes/lang/en/gradereport_outcomes.php

@@ -26,7 +26,7 @@
 $string['addoutcome'] = 'Add an outcome';
 $string['courseoutcomes'] = 'Course outcomes';
 $string['coursespecoutcome'] = 'Course outcomes';
-$string['eventreportviewed'] = 'Outcomes report viewed';
+$string['eventgradereportviewed'] = 'Grade outcomes report viewed';
 $string['pluginname'] = 'Outcomes report';
 $string['outcomes:view'] = 'View the outcomes report';
 $string['usedgradeitem'] = 'Number of grade items';

grade/report/overview/classes/event/grade_report_viewed.php

@@ -42,7 +42,7 @@ class grade_report_viewed extends \core\event\grade_report_viewed {
      * @return string
      */
     public static function get_name() {
-        return get_string('eventreportviewed', 'gradereport_overview');
+        return get_string('eventgradereportviewed', 'gradereport_overview');
     }
 
     /**

grade/report/overview/lang/en/gradereport_overview.php

@@ -22,6 +22,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-$string['eventreportviewed'] = 'Overview report viewed';
+$string['eventgradereportviewed'] = 'Grade overview report viewed';
 $string['pluginname'] = 'Overview report';
 $string['overview:view'] = 'View the overview report';

grade/report/user/classes/event/grade_report_viewed.php

@@ -42,7 +42,7 @@ class grade_report_viewed extends \core\event\grade_report_viewed {
      * @return string
      */
     public static function get_name() {
-        return get_string('eventreportviewed', 'gradereport_user');
+        return get_string('eventgradereportviewed', 'gradereport_user');
     }
 
     /**

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

@@ -22,7 +22,7 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-$string['eventreportviewed'] = 'User grade report viewed';
+$string['eventgradereportviewed'] = 'Grade user report viewed';
 $string['pluginname'] = 'User report';
 $string['user:view'] = 'View your own grade report';
 $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.';