feat: add reverse landscape mode option

[naveensingh]

Type of change(s)

• Bug fix
• Feature / enhancement
• Infrastructure / tooling (CI, build, deps, tests)
• Documentation

What changed and why

• Added a Force landscape (reverse) submenu option to the Change orientation menu.
• Updated the VideoPlayerActivity menu layout to be consistent with the ViewPagerActivity. Now there are 4 options everywhere:
  • Force portrait
  • Force landscape
  • Force landscape (reverse)
  • Use default orientation

Tests performed

• Orientation change in both video players
• Orientation change in the image viewer
• Orientation change using the bottom action

Closes the following issue(s)

• Closes Requesting "Force Landscape Reverse" feature #630

Checklist

• I read the contribution guidelines.
• I manually tested my changes on device/emulator (if applicable).
• I updated the "Unreleased" section in CHANGELOG.md (if applicable).
• I have self-reviewed my pull request (no typos, formatting errors, etc.).
• All checks are passing.