Add program reminders and category filtering to the guide UI

Enhance health diagnostics with EPG quality and source metrics

locales/en.json

@@ -32,10 +32,28 @@
   "search_placeholder": "Search channel or program...",
   "copy_epg": "EPG",
   "copy_m3u": "M3U",
+  "category_filter_title": "Filter by category",
+  "category_all": "All categories",
   "copied": "✓ copied",
   "program_info": "Program info",
   "watch_now": "Watch now",
   "imdb_search": "Search on IMDb",
+  "reminder_button": "Reminder",
+  "reminder_title": "Notify me before broadcast",
+  "reminder_save": "Enable reminder",
+  "reminder_remove": "Remove reminder",
+  "reminder_when": "A browser notification will be sent {minutes} minutes before broadcast.",
+  "reminder_when_soon": "This program starts soon. The reminder will fire almost immediately.",
+  "reminder_status_idle": "No reminder active.",
+  "reminder_status_set": "Reminder active for {time}.",
+  "reminder_status_started": "This program is already airing.",
+  "reminder_saved": "Reminder enabled.",
+  "reminder_removed": "Reminder removed.",
+  "reminder_error_unsupported": "This browser does not support notifications.",
+  "reminder_error_denied": "Notifications are blocked in this browser.",
+  "reminder_error_generic": "Unable to enable reminder.",
+  "reminder_notification_title": "GridTV reminder",
+  "reminder_notification_body": "\"{title}\" starts at {time} on {channel}.",
   "close": "Close",
   "duration_min": "min",
   "personal_epg_title": "Personal EPG",