Bump version to 2.39.4

- Update the app versionName for the v2.39.4 patch release
- Keep the release bump isolated from the crash fix merge for clearer release history

🤖 Auto-generated

Author: OwenMcGirr

app/build.gradle.kts

@@ -20,7 +20,7 @@ android {
         minSdk = 29
         targetSdk = 36
         versionCode = gitVersionCode()
-        versionName = "2.39.3"
+        versionName = "2.39.4"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {