grant audio capture permission to webview

[RobozinhoD]

Purpose / Description

Describe the problem or feature and motivation

Fixes

• Fixes #16319

Approach

Grant the audio capture permission

How Has This Been Tested?

With the deck provided in the issue. Now the permission is granted.

Learning (optional, can help others)

https://developer.android.com/reference/android/webkit/WebChromeClient#onPermissionRequest(android.webkit.PermissionRequest)

Checklist

Please, go through these checks before submitting the PR.

• [X] You have a descriptive commit message with a short title (first line, max 50 chars).
• [X] You have commented your code, particularly in hard-to-understand areas
• [X] You have performed a self-review of your own code
• [ ] UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• [ ] UI Changes: You have tested your change using the Google Accessibility Scanner