Feature: Android - Add initial Editor params

[geriux]

Related PRs:

• Add GutenbergKit WordPress-Android#21223

This PR adds the initial editor parameters for Android, following the approach we used on iOS.

It enables the domStorageEnabled feature for the WebView, allowing the use of the localStorage API.

Unfortunately, on Android, there is nothing similar to iOS's addUserScript to inject the editor's configuration. Therefore, we inject the configuration as soon as we receive the first request from the WebView. In this case, it happens when the index.html file is requested, triggering a call to getEditorConfiguration to inject the configuration.

To test

Note

Use the following WordPress Android build.
All testing instructions are in the PR linked above.