update RN to 0.70 (untested)

.gitignore

@@ -20,6 +20,7 @@ DerivedData
 *.hmap
 *.ipa
 *.xcuserstate
+ios/.xcode.env.local
 
 # Android/IntelliJ
 #
@@ -29,6 +30,7 @@ build/
 local.properties
 *.iml
 *.hprof
+.cxx/
 
 # node.js
 #
@@ -49,9 +51,10 @@ buck-out/
 # For more information about the recommended setup visit:
 # https://docs.fastlane.tools/best-practices/source-control/
 
-*/fastlane/report.xml
-*/fastlane/Preview.html
-*/fastlane/screenshots
+**/fastlane/report.xml
+**/fastlane/Preview.html
+**/fastlane/screenshots
+**/fastlane/test_output
 
 # Bundle artifact
 *.jsbundle