Revert WebKit update

app/build.gradle

@@ -562,7 +562,7 @@ dependencies {
     def activity_version = "1.10.0" // 1.11.0-alpha01
     def fragment_version = "1.8.6"
     def windows_version = "1.3.0" // 1.4.0-rc01/1.5.0-alpha01
-    def webkit_version = "1.13.0"
+    def webkit_version = "1.12.0" // 1.13.0
     def recyclerview_version = "1.4.0"
     def coordinatorlayout_version = "1.2.0" // 1.3.0-rc01
     def constraintlayout_version = "2.2.0"