MDL-65248 core_user: Move some upcoming_activities_due strings

From course lang files to user lang files (where the target belongs to)

AMOS BEGIN
    MOV [target:upcomingactivitiesdue,core_course],[target:upcomingactivitiesdue,core_user]
    MOV [target:upcomingactivitiesdue_help,core_course],[target:upcomingactivitiesdue_help,core_user]
AMOS END

lang/en/course.php

@@ -62,8 +62,6 @@
 $string['target:coursegradetopass_help'] = 'This target describes whether the student is at risk of not getting the minimum grade to pass the course.';
 $string['target:noteachingactivity'] = 'No teaching';
 $string['target:noteachingactivity_help'] = 'This target describes whether courses due to start in the coming week will have teaching activity.';
-$string['target:upcomingactivitiesdue'] = 'Upcoming activities due';
-$string['target:upcomingactivitiesdue_help'] = 'This target generates reminders for upcoming activities due.';
 $string['targetlabelstudentcompletionno'] = 'Student who is likely to meet the course completion conditions';
 $string['targetlabelstudentcompletionyes'] = 'Student at risk of not meeting the course completion conditions';
 $string['targetlabelstudentcompetenciesno'] = 'Student who is likely to achieve the competencies assigned to a course';
@@ -73,4 +71,4 @@
 $string['targetlabelstudentgradetopassno'] = 'Student who is likely to meet the minimum grade to pass the course.';
 $string['targetlabelstudentgradetopassyes'] = 'Student at risk of not meeting the minimum grade to pass the course.';
 $string['targetlabelteachingyes'] = 'Users with teaching capabilities have access to the course';
-$string['targetlabelteachingno'] = 'No teaching';
+$string['targetlabelteachingno'] = 'No teaching';

lang/en/user.php

@@ -125,3 +125,5 @@
 $string['privacy:profileimagespath'] = 'Profile images';
 $string['privacy:privatefilespath'] = 'Private files';
 $string['privacy:sessionpath'] = 'Session data';
+$string['target:upcomingactivitiesdue'] = 'Upcoming activities due';
+$string['target:upcomingactivitiesdue_help'] = 'This target generates reminders for upcoming activities due.';

user/classes/analytics/target/upcoming_activities_due.php

@@ -62,7 +62,7 @@ public function always_update_analysis_time(): bool {
      * @return \lang_string
      */
     public static function get_name() : \lang_string {
-        return new \lang_string('target:upcomingactivitiesdue');
+        return new \lang_string('target:upcomingactivitiesdue', 'user');
     }
 
     /**