feat(bot): refactor /setup and add /bind command

- Simplify /setup message: remove chat ID, use emojis, compact layout
- Remove 'Bind' buttons from /setup
- Add /bind command for binding existing topics
- Remove old binding mode with 10-min timeout
- Update i18n translations for en and ru

apps/bot/src/telegram-commands.ts

@@ -35,6 +35,7 @@ const GROUP_ADMIN_COMMAND_NAMES = [
   ...GROUP_MEMBER_COMMAND_NAMES,
   'setup',
   'unsetup',
+  'bind',
   'bind_chat_topic',
   'bind_purchase_topic',
   'bind_feedback_topic',