[feat] API to clear webview-managed data

[tauri-bot]

This issue has been upstreamed from tauri-apps/tauri#6567

Describe the problem

My application uses cookies/localStorage on the javascript side for various purposes.

I don't see a clear way to clear all the stuff stored by the Webview engine. I could have the javascript side clear these, but there are things that this side can't clear like disk cache, etc

Describe the solution you'd like

I want to put a native button like 'Logout' that clears all this data.

An API on app/app_handle that clears this data might make sense. Maybe it needs to be part of exit or relaunch?

Alternatives considered

I considered manually deleting some of the path_resolver() directories, but directories like /Users/pttamkin/Library/HTTPStorage/{pkg} and /Users/pttamkin/Library/WebKit/{pkg} aren't captured here. Also not sure I can delete these while my app is running?

Additional context

No response

[wusyong]

I'm curious about what happened if the PR is merged. Will this issue transfer back to tauri repo itself?

[amrbashir]

It will post a comment in the original issue that this issue is closed and add backlog label