Android: Update build system and dependencies

- Update Gradle from 8.1 to 8.10.2
- Update Android Gradle Plugin from 8.1.2 to 8.8.0
- Update Kotlin from 1.9.20 to 2.1.20-Beta1
- Update various AndroidX dependencies to latest versions
- Update NDK from 26.1 to 27.2 (with RC1/RC2 options commented)
- Update Java target from 17 to 21
- Update Android target SDK from 34 to 35
- Enable additional optimizations in release builds:
  - Enable shrinkResources
  - Use proguard-android-optimize.txt
  - Disable JNI debugging
- Replace vector drawables with PNG for ic_citron
- Comment out unused ComputeInline constant in dma_pusher.cpp
- Update Gradle wrapper and configuration files

This updates the Android build system and dependencies to their latest
versions while enabling additional optimizations for release builds.
The ic_citron icon was converted from vector to PNG format for better
compatibility.

src/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,7 @@
-#Sun Feb 21 18:16:59 EST 2021
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.10.2-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.1-bin.zip