Added missing markdown for a code snippet

Potential fix for #313 ("No such proxy method" error)

Fixed RequestPermissionAsync not working on iOS

Fixed permission not being asked in an edge case on Android (it's str…

…ongly recommended to use RequestPermissionAsync)

Potential fix for IllegalStateException on Android

Removed the new READ_MEDIA permissions: https://support.google.com/go…

…ogleplay/android-developer/answer/13986130

Fixed #288

Added async variants of RequestPermission function that don't freeze …

…the app unnecessarily

No permission will be asked in Android 14+ devices because partial me…

…dia access permissions are confusing for the end-user

- Bugfix for LoadImageAtPathAsync and GetVideoThumbnailAsync

- Closed #274