chore: add translations

lib/l10n/arb/app_en.arb

@@ -20,10 +20,18 @@
   "@start": {
     "description": "Text displayed on the character selection page start button"
   },
+  "select": "Select",
+  "@select": {
+    "description": "Text displayed on the character selection page select button"
+  },
   "characterSelectionTitle": "Choose your character!",
   "@characterSelectionTitle": {
     "description": "Title text displayed on the character selection page"
   },
+  "characterSelectionSubtitle": "There’s no wrong answer",
+  "@characterSelectionSubtitle": {
+    "description": "Text displayed on the selecting character dialog at game beginning"
+  },
   "gameOver": "Game Over",
   "@gameOver": {
     "description": "Text displayed on the ending dialog when game finishes"