FEATURE: 357542
FIXED-IN: 5.53
Revamp the {nav Recently Saved} section, including the following changes:
- Change the section name to "Recents"
- Change the name of the existing entries to "Created Today" and "Created Yesterday", for clarity.
- Add a "Recently Used item corresponding to `recentdocuments:/`, and adjust the code to support this.
Depends on D15739