docs: delete duplicate files

.gitignore

@@ -1,5 +1,36 @@
-/bin/
-.idea/*
-.classpath*
-.project*
+/gradle/wrapper/gradle-wrapper.properties
+##----------Android----------
+# build
+*.apk
+*.ap_
+*.dex
+*.class
+bin/
+gen/
+build/
+out/
+
+# gradle
+.gradle/
+gradle-app.setting
+!gradle-wrapper.jar
+build/
+
+local.properties
+
+##----------idea----------
 *.iml
+.idea/
+*.ipr
+*.iws
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+##----------Other----------
+# osx
+*~
+.DS_Store
+gradle.properties
+
+.vscode