Feat(UI): overhaul liquid glass effect

[Yan4ik000]

Summary

Here introduces an interactive Liquid Glass implementation for the bottom navigation.

Changes

• Added RenderNode-based lens refraction and chromatic dispersion.
• Added directional edge lighting, inner shadows and dynamic highlights.
• Added dynamic transitions between outlined and filled tab icons.
• Added support for layouts with and without the Calls tab.

Compatibility

The new rendering path is enabled only when:

• Android 13 or newer is used;
• Liquid Glass is enabled in Power Saving settings.

Other configurations continue to use the original Telegram navigation implementation.

Testing

Tested on two physical Android devices.

Verified:

• single-tap navigation;
• long press and drag interactions;
• haptic feedback;
• tab selection animations;
• outlined and filled icon transitions;
• navigation with the Calls tab enabled;
• legacy behavior with Liquid Glass disabled;

Screen_Recording_20260729_053426_Telegram.mp4

Attribution

Portions of the optical rendering implementation are derived from AndroidLiquidGlass / Backdrop by Kyant and are licensed under Apache License 2.0.