Fix phone auth UI bugs (#1114)

Author: SUPERCILEX

auth/build.gradle

@@ -36,7 +36,7 @@ android {
 dependencies {
     implementation "com.android.support:design:$supportLibraryVersion"
     implementation "com.android.support:customtabs:$supportLibraryVersion"
-    implementation 'com.android.support.constraint:constraint-layout:1.1.0-beta4'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.0-beta3'
 
     implementation "android.arch.lifecycle:extensions:$architectureVersion"
     annotationProcessor "android.arch.lifecycle:compiler:$architectureVersion"