Revert "Upgrade to RN0.74.0 (#1471)"

This reverts commit 1b705b4495.

.gitignore

@@ -21,7 +21,7 @@ DerivedData
 *.ipa
 *.xcuserstate
 # Might be used to customize further the path to node that xcode uses, see .xcode.env for our version controlled file
-**/.xcode.env.local
+ios/.xcode.env.local
 
 # Android/IntelliJ
 #
@@ -46,7 +46,7 @@ yarn-error.log
 *.jsbundle
 
 # Ruby / CocoaPods
-**/Pods/
+/ios/Pods/
 /vendor/bundle/
 
 # Temporary files created by Metro to check the health of the file watcher
@@ -58,14 +58,6 @@ yarn-error.log
 # Jest Coverage
 /coverage
 
-# Yarn
-.yarn/*
-!.yarn/patches
-!.yarn/plugins
-!.yarn/releases
-!.yarn/sdks
-!.yarn/versions
-
 # Secrets file
 .env*