chore: Bump version to 2.2.0

- Increment version code from 219 to 220
- Update version name from 2.1.9 to 2.2.0

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: graycreate

config.gradle

@@ -1,7 +1,7 @@
 ext {
     app = [
-            versionCode: 219,
-            versionName: "2.1.9"
+            versionCode: 220,
+            versionName: "2.2.0"
     ]
     android = [
             supportVersion: '26.1.0'