Support high refresh rate displays (120Hz/144Hz) and resolve frame dr…

[smartworldarafath]

…op bottlenecks

• Configure window preferredMaxDisplayRefreshRate and preferredDisplayModeId in WindowUtil/BaseActivity to unlock true 120Hz and 144Hz on supported displays and OEM devices
• Modernize FrameRateTracker display retrieval and dynamically update refresh rate calculations on dynamic refresh rate displays
• Optimize SpoilerPaint and SpoilerRendererDelegate to throttle view invalidations to actual particle updates, eliminating redundant 120Hz draw passes
• Remove heap array allocations in spoiler measurements caching by using primitive composite keys
• Prevent DefaultLifecycleObserver leaks during RecyclerView scrolling in SpoilerRendererDelegate
• Decouple frameTime from displayText remember keys in Compose SpoilerText to prevent full text recomposition and re-layout loops at 120Hz
• Prevent dead Activity context leaks in CachedInflater.ViewCache
• Increase RecyclerView item view cache size in ConversationFragment to smooth rapid 120Hz/144Hz scrolling

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• I have read how to contribute to this project
• I have signed the Contributor License Agreement

Contributor checklist

• I am following the Code Style Guidelines
• I have tested my contribution on these devices:

• Device A, Android X.Y.Z
• Device B, Android Z.Y
• Virtual device W, Android Y.Y.Z

• My contribution is fully baked and ready to be merged as is
• I ensure that all the open issues my contribution fixes are mentioned in the commit message of my first commit using the Fixes #1234 syntax

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