expose set_device_event_filter in tauri

[cymruu]

Closes #5496

What kind of change does this PR introduce?

• Bugfix
• Feature
• Docs
• New Binding issue [feat] Expose set_device_event_filter to Tauri API #5496
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change?

• Yes, and the changes were approved in issue #___
• No

Checklist

• When resolving issues, they are referenced in the PR's title (e.g fix: remove a typo, closes #___, #___)
• A change file is added if any packages will require a version bump due to this PR per the instructions in the readme.
• I have added a convincing reason for adding this feature, if necessary

Other information

[WSH032]

Hi, is there any particular reason why set_device_event_filter is only implemented for App and not for AppHandle?

I just browsed the code, and it seems possible to implement it for AppHandle as well. Is it because this method must be called before App::run to be effective? Or was it just overlooked at the time?

I'd like to submit a PR to implement this, unless there's a specific reason not to.