fix(ios): fix tabgroup layout on iOS 16+

[hansemannn]

Wow, that one was heavy to find out. Yet a simple and reasonable fix!

NOTE: Do not merge, yet. There is still a (maybe related) issue regarding x-spacing of the navigation bar.
It's unrelated, filing a new issue for this soon.

Test case:

const window1 = Ti.UI.createWindow({ title: 'Window 1', backgroundColor: 'blue' });
const window2 = Ti.UI.createWindow({ title: 'Window 2', backgroundColor: 'red' });
const window3 = Ti.UI.createWindow({ title: 'Window 3', backgroundColor: 'green' });

const tabGroup = Ti.UI.createTabGroup({
	tabs: [
		Ti.UI.createTab({ window: window1, title: 'Tab 1' }),
		Ti.UI.createTab({ window: window2, title: 'Tab 2' }),
		Ti.UI.createTab({ window: window3, title: 'Tab 3' })
	]
});

tabGroup.open();

Example:

Before	After

Fixes #13479

[janvennemann]

LGTM!