feat(library): add platform badges, remove hide duplicates

Gitea #34 slice 2 of 3. Core lists each set once now.
The hide duplicates toggle and its param are not needed.
PlatformIcons shows a badge per platform (platforms[]).

public/i18n/de.json

@@ -291,7 +291,6 @@
     "FILTER_HIDDEN": "Ausgeblendet",
     "NO_HIDDEN": "Keine ausgeblendeten Spiele. Blende ein Spiel auf seiner Detailseite aus, z. B. einen Playtest oder ein Tool.",
     "ACHIEVEMENTS": "{{unlocked}} von {{total}} Erfolgen",
-    "FILTER_HIDE_DUPLICATES": "Duplikate ausblenden",
     "EDITIONS": "{{count}} Ausgaben in deiner Bibliothek"
   },
   "GAME_DETAIL": {

public/i18n/en.json

@@ -291,7 +291,6 @@
     "FILTER_HIDDEN": "Hidden",
     "NO_HIDDEN": "No hidden games. Hide a game on its detail page, e.g. a playtest or a tool.",
     "ACHIEVEMENTS": "{{unlocked}} of {{total}} achievements",
-    "FILTER_HIDE_DUPLICATES": "Hide duplicates",
     "EDITIONS": "{{count}} editions in your library"
   },
   "GAME_DETAIL": {