feat(dashboard): currently playing and pile of shame tiles

Pile of Shame shows the backlog count and share, a status bar and a random
backlog pick. Both tiles show the first-sync text while the initial sync runs;
a failed summary load shows a retry button.

public/i18n/en.json

@@ -86,7 +86,18 @@
     "MOST_PLAYED": "Most played",
     "SHOW_ALL": "Show all",
     "TO_LIBRARY": "Go to library",
-    "WELCOME_BACK": "Welcome back"
+    "WELCOME_BACK": "Welcome back",
+    "CURRENTLY_PLAYING": "Currently playing",
+    "NOTHING_PLAYING": "Nothing right now. Set a game to \"Playing\".",
+    "PILE_OF_SHAME": "Pile of Shame",
+    "PILE_SHARE": "{{percent}}% of your library",
+    "NEVER_PLAYED_one": "{{count}} game never started",
+    "NEVER_PLAYED_other": "{{count}} games never started",
+    "SUGGESTION": "How about",
+    "OTHER_SUGGESTION": "Other pick",
+    "BACKLOG_EMPTY": "Your backlog is empty. Nice!",
+    "SUMMARY_FAILED": "Could not load the overview.",
+    "RETRY": "Try again"
   },
   "LIBRARY": {
     "TITLE": "Game Library",