Enhancement and updating of iOS app with AWS Amplify integration

Enhancement and update of iOS app with AWS Amplify integration

Existing iOS app feature
1. AWS Amplify integration
2. Video capturing of human body motion via Apple ARKit
3. Uploading of video files to S3
4. User registration and login with Apple, FB and google via Amplify

Changes required:
1. Update of video capturing UI
2. Update of feeds UI
3. Update of user profile and setting UI
4. Update of results UI
5. Create app intro during initial installation using screenshots
6. Switch video capturing from Apple ARKit to Vision (https://developer.apple.com/documentation/vision)
7. Allow analysis of human body motion on uploaded video file and device camera using Apple Vision
8. Control of video upload with the option via Wifi or cellular
9. Migrate REST API to AWS AppSync
10. Create app notification feeds
11. Integration of result sharing to FB and IG
12. Create app and security logging events to AWS
13. Update and fix existing Xcode warning and error
14. iOS app documentation