Upgrade React Native from 0.69.1 to 0.70.0-rc.0

Merge squash: #789
- Update react-native
- Update Flow config
- Update pods
- Update App
- Update app/build.gradle
- Update android jni/MainComponentsRegistry.cpp
- Update android jni/MainApplicationModuleProvider.h
- Update android jni/MainApplicationTurboModuleManagerDelegate.h
- Update android jni/Android.mk
- Update android jni/MainApplicationModuleProvider.cpp
- Update android jni/MainApplicationTurboModuleManagerDelegate.cpp
- Revert previous change in comment for now
- Fix app/build.gradle error
- Update snapshot
Close: #790

Author: leotm

.flowconfig

@@ -52,7 +52,6 @@ nonstrict-import=warn
 deprecated-type=warn
 unsafe-getters-setters=warn
 unnecessary-invariant=warn
-signature-verification-failure=warn
 
 [strict]
 deprecated-type
@@ -64,5 +63,4 @@ untyped-import
 untyped-type-import
 
 [version]
-^0.176.3
-
+^0.182.0