feat: expose set_title for MacOS tray

[vojty]

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

[vojty]

Any help on finishing this PR would be appreciated.

[lucasfernog]

Nice work, thank you!

[lucasfernog]

Would be really really nice if you could setup commit signing for next time, but nice PR ❤️

[vojty]

wow I didn't expect so quick reaction, thanks a lot ❤️

[fcoury]

I am currently using this feature, and loving it.

Quick question though: is there a way already or are you planning on allowing usage of the tray with no icons, just text?

[FabianLars]

@fcoury Feel free to open a feature request for that one ✌️