chore: Disable audio alert for pending status conversation (#10777)

# Pull Request Template

## Description

This PR disables audio alerts for conversations with a status of
"pending." It applies to all notification event types, ensuring that
audio will not play for conversations marked as "pending."

Fixes
https://linear.app/chatwoot/issue/CW-3951/audio-alerts-shouldnt-be-triggered-in-conversation-is-in-pending-state

## Type of change

- [x] Breaking change (fix or feature that would cause existing
functionality not to work as expected)

## How Has This Been Tested?

Steps:
1. Create a conversation.
2. Then mark the conversation as pending.
3. Send message.
4. Make sure audio notification are enabled.


## 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
- [x] 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/helper/AudioAlerts/DashboardAudioNotificationHelper.js

@@ -172,6 +172,12 @@ export class DashboardAudioNotificationHelper {
       return;
     }
 
+    // If the conversation status is pending, then dismiss the alert
+    // This case is common for all audio event types
+    if (this.store.isMessageFromPendingConversation(message)) {
+      return;
+    }
+
     // If the message is sent by the current user then dismiss the alert
     if (isMessageFromCurrentUser(message, this.currentUser.id)) {
       return;