V1.0.0

feat: Added release signing configuration

This commit introduces a release signing configuration to the Android build process.

Key changes:
- Imported `java.util.Properties` and `java.io.FileInputStream` in `android/app/build.gradle.kts`.
- Added logic to load signing properties from `key.properties` file.
- Created a `release` signing configuration that uses the loaded properties for `storeFile`, `storePassword`, `keyAlias`, and `keyPassword`.
- Updated the `release` build type to use the new `release` signing configuration instead of the debug one.