Update .gitignore

Author: Jonsnow21

.gitignore

@@ -1,11 +1,48 @@
+# Built application files
+*.apk
+*.ap_
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# Intellij
 *.iml
-.gradle
-/local.properties
-/.idea/libraries
-/.idea/modules.xml
-/.idea/workspace.xml
+.idea/
+.idea/workspace.xml
+
+# Keystore files
+*.jks
+
+# Mac 
 .DS_Store
-/build
-/captures
+
+# Other
 .externalNativeBuild
-google-services.json
+google-services.json