[FR] Open directly to "Last Opened" document on Android

### Description

Navigating through the workspace every time the app is launched on mobile adds unnecessary friction, especially when returning to continue a long writing or note-taking session.

Implement a setting or default behavior on the Android app where launching the application automatically opens the last viewed or edited document. This would be a massive quality-of-life improvement for quick note-taking.

### Impact

Everyone, no less.

### Additional Context

_No response_