Update .gitignore

Author: cosmicbit

.gitignore

@@ -1,36 +1,69 @@
 # Xcode
-.DS_Store
+#
+# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
 
-##Firebase
-GoogleService-Info.plist
+##OS-generated files
+.DS_Store
+.DS_Store?
 
-## Various settings
+## User settings
 xcuserdata/
 
-## Build generated
-build/
-DerivedData/
-
-## Other 
-*.moved-aside   
-*.xccheckout
-*.xcscmblueprint
-
 ## Obj-C/Swift specific
 *.hmap
+
+## App packaging
 *.ipa
-*.dSYM.zip 
+*.dSYM.zip
 *.dSYM
 
-## Playgrounds  
+## Playgrounds
 timeline.xctimeline
 playground.xcworkspace
 
 # Swift Package Manager
 #
-# Add this line if you want to avoid checking in source code from Swift Package$
+# Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.
 # Packages/
 # Package.pins
 # Package.resolved
+# *.xcodeproj
+#
+# Xcode automatically generates this directory with a .xcworkspacedata file and xcuserdata
+# hence it is not needed unless you have added a package configuration file to your project
+.swiftpm
+
 .build/
 
+# CocoaPods
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+#
+Pods/
+#
+# Add this line if you want to avoid checking in source code from the Xcode workspace
+*.xcworkspace
+
+# Carthage
+#
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
+
+Carthage/Build/
+
+# fastlane
+#
+# It is recommended to not store the screenshots in the git repo.
+# Instead, use fastlane to re-generate the screenshots whenever they are needed.
+# For more information about the recommended setup visit:
+# https://docs.fastlane.tools/best-practices/source-control/#source-control
+
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots/**/*.png
+fastlane/test_output
+
+## Google
+GoogleService-Info.plist