feat(library): backlog status, rating, notes and priority in the UI

Detail page gets an edit card. The library gets status badges, status filter
chips and a debounced name search, both kept in the URL.

public/i18n/en.json

@@ -109,7 +109,10 @@
     "SYNCING": "Syncing with Steam …",
     "SYNCING_FIRST_TIME": "First sync with Steam in progress. Your games will appear here shortly.",
     "SYNC_FAILED": "Sync failed. Please try again later.",
-    "LAST_SYNCED": "Last synced {{when}}"
+    "LAST_SYNCED": "Last synced {{when}}",
+    "FILTER_ALL": "All",
+    "SEARCH_PLACEHOLDER": "Search games …",
+    "NO_MATCH": "No games match this filter."
   },
   "GAME_DETAIL": {
     "BACK": "Back",
@@ -157,5 +160,32 @@
     "LANGUAGE": "Language",
     "DARK_MODE": "Dark mode",
     "LIGHT_MODE": "Light mode"
+  },
+  "BACKLOG": {
+    "TITLE": "My backlog",
+    "STATUS_LABEL": "Status",
+    "PRIORITY_LABEL": "Priority",
+    "RATING_LABEL": "Rating",
+    "RATING_STARS_one": "{{count}} star",
+    "RATING_STARS_other": "{{count}} stars",
+    "NOTES_LABEL": "Notes",
+    "NOTES_PLACEHOLDER": "What do you want to remember about this game?",
+    "SAVE": "Save",
+    "RESET": "Discard",
+    "SAVED": "Saved",
+    "SAVE_FAILED": "Saving failed. Please try again.",
+    "STATUS": {
+      "BACKLOG": "Backlog",
+      "PLAYING": "Playing",
+      "FINISHED": "Finished",
+      "COMPLETED": "100%",
+      "DROPPED": "Dropped"
+    },
+    "PRIORITY": {
+      "NONE": "None",
+      "HIGH": "High",
+      "MEDIUM": "Medium",
+      "LOW": "Low"
+    }
   }
 }