Clarify photo task wording in admin UI

resources/js/admin/i18n/locales/en/mobile.json

@@ -1,7 +1,7 @@
 {
   "nav": {
     "home": "Home",
-    "tasks": "Tasks",
+    "tasks": "Photo tasks",
     "uploads": "Uploads",
     "profile": "Profile",
     "notifications": "Notifications",
@@ -18,7 +18,7 @@
     "empty": "Create your first event to get started",
     "eventSwitcher": "Choose an event",
     "noEventsTitle": "Create your first event",
-    "noEventsBody": "Start an event to access tasks, uploads, QR posters and more.",
+    "noEventsBody": "Start an event to access photo tasks, uploads, QR posters and more.",
     "createEvent": "Create event",
     "noDate": "Date tbd",
     "active": "Active",