update gitignore

Author: tvd12

android/.gitignore

@@ -5,6 +5,7 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+gradle/
 
 # Remember to never publicly share your keystore.
 # See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,3 +1,4 @@
 /build
 socket.iml
 proguard-rules.pro
+consumer-rules.pro