feat(bot): enhance conversation handling by removing redundant typing indication

- Added a chat action for 'typing' indication at the start of the bot's conversation flow.
- Removed the redundant 'typing' action from individual conversation handlers to streamline the code.

apps/bot/src/bot/index.ts

@@ -40,13 +40,15 @@ export function createBot({ token }: Parameters_) {
 
   bot.use(autoChatAction(bot.api));
 
+  bot.use(chatAction('typing'));
+
   bot.use(grammyConversations()).command('cancel', async (ctx) => {
     await ctx.conversation.exitAll();
     await ctx.reply(ctx.t('msg-cancel'));
   });
 
   for (const conversation of Object.values(conversations)) {
-    bot.use(chatAction('typing'), createConversation(conversation));
+    bot.use(createConversation(conversation));
   }
 
   setInfo(bot);