Rooms filter lacks a way to reset to all rooms

Description:

In the Rooms view, after selecting a filter option, there is no clear way to return to the default unfiltered list (all rooms).
The filter UI should provide either a Clear filters action or an All rooms option.

Steps to reproduce:

1. Go to the Rooms page/list.
2. Open the room filters.
3. Select any specific filter option.
4. Try to return to the full list of all rooms.

Expected behavior:

Users should be able to easily reset filtering and return to all rooms, for example via:

• a Clear filters action, or
• an All rooms filter option.

Actual behavior:

After selecting a filter, there is no obvious way to reset back to the full all-rooms list from the filter UI.

Server Setup Information:

• Version of Rocket.Chat Server: 8.4.0-develop
• License Type: MIT
• Number of Users: 3
• Operating System: macOS
• Deployment Method: docker
• Number of Running Instances: 1
• DB Replicaset Oplog: Disabled (local single-node setup)
• NodeJS Version: 22.16.0
• MongoDB Version: 8.0.5

Client Setup Information

• Desktop App or Browser Version: Google Chrome (latest stable)
• Operating System: macOS

Additional context

screenshot of the filter component

If this behavior is intentional, please consider adding a visible reset action for usability.

Relevant logs:

N/A (UI behavior issue)

Start at the Rooms view and its filter component, then reproduce the missing reset behavior described in the issue. Trace how a selected room filter is applied and add either a Clear filters action or an All rooms option. Done means users can return to the complete room list from the filter UI, with the relevant frontend tests updated or added.