fix: support for iOS 14+ with setAdvertiserTrackingEnabled; remove rectangle banner on iOS

[TMaszko]

Summary

In this PR:

• removed rectangle banner on ios
• added support for ios 14+ by implementing setAdvertiserTrackingEnabled method
• added readme for setAdvertiserTrackingEnabled method

Test plan

1. Open iOS simulator/device with ios 14+
2. Give app tracking permission
3. Check all types of ads -> they should be visible

[mrousavy]

Looks good to me - but doesn't the native android SDK also provide the personalization enable/disable func?

[thymikee]

Let's add a clear notice that FB won't display adds when this is not set to true

[TMaszko]

@mrousavy hmm I did this upgrade according to this guide https://developers.facebook.com/docs/audience-network/guides/advertising-tracking-enabled. I haven't seen anything about Android :(.

[bliang]

How were you able to get around the requirement for:

[!] CocoaPods could not find compatible versions for pod "FBSDKShareKit":
  In snapshot (Podfile.lock):
    FBSDKShareKit (= 5.8, = 5.8.0)

  In Podfile:
    react-native-fbsdk (from `../node_modules/react-native-fbsdk`) was resolved to 3.0.0, which depends on
      react-native-fbsdk/Share (= 3.0.0) was resolved to 3.0.0, which depends on
        FBSDKShareKit (~> 8.1)


You have either:
 * changed the constraints of dependency `FBSDKShareKit` inside your development pod `react-native-fbsdk`.
   You should run `pod update FBSDKShareKit` to apply changes you've made.

Correct if I am wrong, but this would require react-native-fbsdk 3.0.0 for FBSDK v9.

[mrousavy]

Did you run what the command output suggested?

pod repo update
pod update FBSDKShareKit

[bliang]

@mrousavy I have.

[bliang]

Looks like Podfile.lock needed to be cleared first since it was pinned to a previous version. Thanks!