release: prepare TypeType Android 1.7.0

[Priveetee]

Summary

• Prepare the TypeType Android 1.7.0 mobile release.
• Add responsive tablet layouts with larger navigation, actions, and touch targets.
• Refine player seeking, fullscreen alignment, gesture feedback, surface lifecycle, and navigation state.
• Improve sharing, appearance handling, login presentation, and adaptive settings.
• Keep Android TV out of this mobile release.

Validation

The release candidate passed:

./gradlew --no-daemon :app:testDebugUnitTest :app:lintDebug :app:assembleDebug :app:assembleRelease

The build completed successfully with 180 actionable tasks, including the unit-test, lint, debug-build, and release-build checks.

Release metadata

• Version name: 1.7.0
• Version code: 10700
• Release notes: release-notes/v1.7.0.md
• The stable and beta F-Droid channels keep the same application identity.

This PR changes only the mobile app module and its release metadata. The existing TV and deployment work remains outside this release.