feat(ui): update and animate switch camera button

[naveensingh]

Type of change(s)

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

What changed and why

• Replace the older camera switch icons with a single Flip Camera material symbol.
• Animated the new icon as done in other camera apps, so it rotates 180 degrees on every tap.

Before & after preview

Closes the following issue(s)

Not tracked.

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).
• All checks are passing.

[ghost]

Hey Bro Cover the image with your hand 😅

• You can disable camera from settings 😅