feat(registration): show the wait time after too many attempts

public/i18n/en.json

@@ -32,7 +32,8 @@
     "ERROR_INVALID_INVITE_CODE": "The invite code is invalid or has already been used.",
     "ERROR_STEAM_ID_IN_USE": "This Steam ID is already linked to another account.",
     "DISPLAY_NAME": "Display name (optional)",
-    "ERROR_DISPLAY_NAME_IN_USE": "This display name is already taken."
+    "ERROR_DISPLAY_NAME_IN_USE": "This display name is already taken.",
+    "ERROR_TOO_MANY_ATTEMPTS": "Too many failed attempts. Please try again in {{minutes}} minutes."
   },
   "SETTINGS": {
     "TITLE": "Settings",