[Feature Request] Add option to clear Recent Files list

[kodebarista]

Issue/Description:
Currently, there is no option to clear the recents list. For organizational purposes, it would be great if users could clear the entire recent list, similar to the functionality available in COSMIC Player.

Expected Behavior:

• A visible action (e.g., “Clear Recent” button or menu entry) is available.
• Triggering the action removes all entries from the Recent Files list.
• The list remains empty until new files are opened.