Workaround Android Studio 3.3 issue

https://issuetracker.google.com/issues/112604029

.gitignore

@@ -16,3 +16,4 @@
 /app/play_release
 /tools/config.sh
 crowdin.properties
+keystore.properties

app/build.gradle

@@ -1,5 +1,9 @@
 apply plugin: 'com.android.application'
 
+def keystorePropertiesFile = rootProject.file("keystore.properties")
+def keystoreProperties = new Properties()
+keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+
 android {
     compileSdkVersion 28
     defaultConfig {
@@ -16,6 +20,14 @@ android {
             }
         }
     }
+    signingConfigs {
+        release {
+            storeFile file(keystoreProperties['storeFile'])
+            storePassword keystoreProperties['storePassword']
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+        }
+    }
 
     buildTypes {
         release {
@@ -23,6 +35,7 @@ android {
             minifyEnabled = true
             useProguard = true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.release
         }
         debug {
             debuggable = true