The client code for Android and Flutter are in typescript language

[AnilMaktala]

Describe the bug
https://docs.amplify.aws/android/build-a-backend/data/customize-authz/

In the documentation, the client code for Android and Flutter is written in TypeScript.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Android docs'
2. Verify on customize-authz section.

Expected behavior
Code snippets should be Android and flutter specific.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.