feat: add window effects api

[amrbashir]

What kind of change does this PR introduce?

• Bugfix
• Feature
• Docs
• New Binding issue #___
• 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

[lucasfernog]

I'm not sure why but I can't apply any of the effects on the API example (tried both macOS and Windows).

[amrbashir]

Seems to be working just fine for me with WindowBuilder and tauri.conf.json

Just make sure to enable transparency (decorations on Windows).

[lucasfernog]

Can you share your config too @amrbashir just so I can compare

[lucasfernog]

Ahh I forgot we removed transparency by default on the example. Let me check.

[lucasfernog]

Ah I forgot we also need to document this on the config. And maybe it's best to put a reference on the decorations/fullscreen issue until it gets fixed, otherwise people will think the effects aren't working.