fix: prevent page swipes while seeking

[Guflly]

Type of change(s)

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

What changed and why

• Prevent the page view from intercepting seekbar drag gestures
• Restore normal page swiping after the gesture ends, is canceled, or the seekbar is detached
• Keep the existing seekbar styling and accessibility click behavior

Tests performed

• ./gradlew detekt

Closes the following issue(s)

• Closes player screen is prone to unintentionally swiping to adjacent pages #82

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.).
• I understand every change in this pull request.