feat(games): add coming badge for unreleased games

public/i18n/en.json

@@ -234,6 +234,8 @@
     "LOADING": "Loading games …",
     "EMPTY": "No games yet. Sync your Steam library or add a game.",
     "ERROR_LOAD": "Could not load your games.",
+    "COMING": "Coming {{date}}",
+    "COMING_SOON": "Coming soon",
     "PER_PAGE": "Per page:",
     "SORT_BY": "Sort by:",
     "SORT_PLAYTIME_DESC": "Most played",