Fixed to be able to build without google-services.json

app/build.gradle

@@ -3,9 +3,12 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlinx-serialization'
-apply plugin: 'com.google.gms.google-services'
-apply plugin: 'io.fabric'
-apply plugin: 'com.google.firebase.firebase-perf'
+
+if (file("google-services.json").exists()) {
+    apply plugin: 'com.google.gms.google-services'
+    apply plugin: 'io.fabric'
+    apply plugin: 'com.google.firebase.firebase-perf'
+}
 
 android {
     compileSdkVersion 29
@@ -14,7 +17,7 @@ android {
         minSdkVersion 16
         targetSdkVersion 29
         versionCode 31
-        versionName "4.2-beta2-hotfix2"
+        versionName "4.2"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
         vectorDrawables.useSupportLibrary = true
@@ -25,7 +28,7 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
         buildTypes.each {
-            it.buildConfigField('boolean', 'PRERELEASE', 'true')
+            it.buildConfigField('boolean', 'PRERELEASE', 'false')
             it.buildConfigField('boolean', 'CENSOR', 'false')
         }
     }