Migrate QuickActionView using open-source library migration guide

[theJawnnybot]

Summary

Applied the migration checklist from open-source-library-migration.md.

Build/toolchain

• Java 17
• Gradle 9.3.1
• Android Gradle Plugin 9.1.0
• Converted build scripts from Groovy to Kotlin DSL (.gradle.kts)
• Updated dependencies to current stable versions

Publishing

• Added com.vanniktech.maven.publish
• Configured publishToMavenCentral(SonatypeHost.CENTRAL_PORTAL)
• Enabled release signing in workflow
• Added Maven POM metadata in gradle.properties
• Bumped patch version to 2.0.1

CI/CD

• Modernized CI workflow (checkout@v4, setup-java@v4, wrapper validation)
• Added tag-based Maven Central publish workflow
• Uses release secrets:
  • MAVEN_CENTRAL_USERNAME
  • MAVEN_CENTRAL_PASSWORD
  • SIGNING_PRIVATE_KEY
  • SIGNING_PASSWORD
• Uses tag version via -PVERSION_NAME="${GITHUB_REF_NAME}" (no file mutation)

Docs/cleanup

• Updated README badge/link to Maven Central
• Replaced JitPack dependency instructions with Maven Central coordinates
• Updated sample GIF branch link from master to main

Validation

• ./gradlew build ✅