Option to show number of unread chats instead of unread messages

[SnnowRoyale]

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Problem Description

Currently Ferdium only have the option to show how many unread messages you have, but doesn't have any option to show how many chats instead. When using WhatsApp service, for example, it's much more important to know the number of unread chats than the number of unread messages across all chats.

Proposed Solution

Create a an option at the Settings to provide this alternative.

Alternatives Considered

The only possible alternative is create a an option at the Settings to provide this possibility.

Additional Information

No response