feat: add more items in macOS menu bar

[mavjs]

This PR tries to address some of the items listed in the brainstormed list mentioned in #1077

• "About Chatterino" item which when clicked, opens the SettingsDialog with the "About" tab selected.

• "Help" menu bar option that has multiple items linking to Wiki, Github, Discord, when clicked they open the URLs with the default browser.

• "Minimise" item (under "Window" menu bar option) which when clicked, minimises the entire Window.

[Wissididom]

Not sure, but this is what I find when googling for the question if a minimize option is standard for mac: https://developer.apple.com/design/human-interface-guidelines/the-menu-bar#Window-menu

As far as I understand it is recommended, but not necessary to do, but I have no experience with Mac at all.

[Felanbird]

should be minimize for both the fact that Apple documents it spelt that way, and we have no references in our code spelt with an s

[github-actions]

clang-tidy made some suggestions

[pajlada]

Overall this looks great! Thank you! I'll test this briefly on my macOS Sonoma system then I'm happy to merge this in

[mavjs]

Overall this looks great! Thank you! I'll test this briefly on my macOS Sonoma system then I'm happy to merge this in

Thank you!

One thing that's low priority (I think) is about the use of Meta in the MenuBar, while in fact it should be Control. However, for this PR, I didn't want to change such keyboard shortcuts until we get some consensus about whether that change is desirable. :)

Referencing: https://doc.qt.io/qt-6/qkeysequence.html#details

Note: On Apple platforms, references to "Ctrl", Qt::CTRL, Qt::Key_Control and Qt::ControlModifier correspond to the Command keys on the Macintosh keyboard, and references to "Meta", Qt::META, Qt::Key_Meta and Qt::MetaModifier correspond to the Control keys. In effect, developers can use the same shortcut descriptions across all platforms, and their applications will automatically work as expected on Apple platforms.

[pajlada]

I've tested this and everything works as expected 👍
I don't have edit rights on the PR, could you make this PR up-to-date with master @mavjs?

[mavjs]

I've tested this and everything works as expected 👍 I don't have edit rights on the PR, could you make this PR up-to-date with master @mavjs?

@pajlada oops, I toggled that off when I sent a PR. (Have re-enabled it.) Been a while since I have contributed to some upstream open source stuff, so played around with that option. 😛

Seems @Felanbird (thanks!) has taken care of making it up-to-date with master. 🙏🏽