fix: Reset recorder and attachments when switching chats (#11174)

# Pull Request Template

## Description

This PR will reset the recorder and clear attachments when switching
chats. It ensures that any ongoing recordings or attached files do not
persist across different conversations

Fixes
https://linear.app/chatwoot/issue/CW-4157/recorded-audio-is-being-preserved-between-conversations
https://github.com/chatwoot/chatwoot/issues/11136

## Type of change

- [x] Bug fix (non-breaking change which fixes an issue)

## How Has This Been Tested?

### Loom video

https://www.loom.com/share/6d6361650794426497467d6de1b4900d?sid=d856c540-1032-4ea2-8765-8704b76e8e1d


## Checklist:

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

app/javascript/dashboard/components/widgets/conversation/ReplyBox.vue

@@ -420,6 +420,7 @@ export default {
       if (conversationId !== oldConversationId) {
         this.setToDraft(oldConversationId, this.replyType);
         this.getFromDraft();
+        this.resetRecorderAndClearAttachments();
       }
     },
     message(updatedMessage) {
@@ -529,6 +530,12 @@ export default {
         );
       }
     },
+    resetRecorderAndClearAttachments() {
+      // Reset audio recorder UI state
+      this.resetAudioRecorderInput();
+      // Reset attached files
+      this.attachedFiles = [];
+    },
     saveDraft(conversationId, replyType) {
       if (this.message || this.message === '') {
         const key = `draft-${conversationId}-${replyType}`;