[core] Add support for iOS Safari 12

[eps1lon]

Seems like I forgot ios_safari 12.2 in #22814. The other changes are due to new version releases (mainly Firefox ESR moving to 78).

Safari 12 sits at 2% global usage. But other than IE 11 where we argue that this browser is mostly used in corporate enviornments (with an LTS license) iOS Safari 12 is used by actual people that would need to buy a new phone in order to upgrade to Safari 13. So I don't think the usage stats can solely be used as justification to drop it.

The unfortunate part is that this won't allow an all-in usage of PointerEvent. But we'll get there eventually.

The good part is that ImageList should function perfectly well in iOS Safari 12 looking at gap and column-gap support

[mui-pr-bot]

Details of bundle changes

Generated by 🚫 dangerJS against 12c96cf

[oliviertassinari]

No objections, iOS 12 isn't going away as easily as the previous versions: https://gs.statcounter.com/ios-version-market-share/mobile/worldwide/#monthly-201804-202009.

Shouldn't we update https://next--material-ui.netlify.app/getting-started/supported-platforms/#browser in this case?
What's the difference between Safari on iOS and macOS? I thought they were using the same engine.

[eps1lon]

Shouldn't we update next--material-ui.netlify.app/getting-started/supported-platforms/#browser in this case?

Yes, I forgot 👍

What's the difference between Safari on iOS and macOS? I thought they were using the same engine.

Kind of depends what you mean by "engine". I just treat them as different browsers because they are. How similar they are under the hood is not really a concern for me. Why are you asking?

[oliviertassinari]

Why are you asking?

I'm asking regarding what we should document and how.

[eps1lon]

Seems like they are in fact different: https://stackoverflow.com/questions/3006647/list-of-known-safari-on-ipad-differences-over-desktop-safari

Maybe that's just historical but I'd treat them differently.

[oliviertassinari]

Maybe that's just historical but I'd treat them differently.

Same for Chrome?

[eps1lon]

If it has a different name it's a different browser in my book. Not sure what we are discussing here?

[oliviertassinari]

My point is that if we are handling Safari differently based on mobile vs desktop, shouldn't we do the same for chrome?

https://caniuse.com/?search=pointer

[eps1lon]

My point is that if we are handling Safari differently based on mobile vs desktop, shouldn't we do the same for chrome?

Haven't thought about it. If you're aware of inconsistencies then we should probably include it. Though it might be ok to ignore 1 version differences for evergreen browsers.

[mbrookes]

Thanks!