chore: update minimum browser versions we support

[marcelgerber]

I think it's time :)

This is dropping support for Safari 12 in particular, and beginning our browser support at Safari 13.1.
This makes us support browsers going back to early 2020, roughly 4.5 years.

I've hand-checked the features that Vite enables with this change, and it's mainly:

• No longer transpiling ES6 template literals but keeping them in their ES6 syntax
• Including the nullish coalescing operator (??) as-is in the output JS and not transpiling it
• In CSS, it's dropping some vendor prefixes, e.g. -webkit-sticky, -webkit-text-decoration-color.

I've tested this in Safari 12 and Chrome 78, both of which are properly falling back to our no-JS solution (because of syntax errors related to ??). Safari 13.1 is working fine.

[owidbot]

Quick links (staging server):

Site Dev	Site Preview	Admin	Wizard	Docs

Login: ssh owid@staging-site-update-min-browser

• Site-screenshots: https://github.com/owid/site-screenshots/compare/update-min-browser
• SVG tester: https://github.com/owid/owid-grapher-svgs/compare/update-min-browser

SVG tester:

Number of differences (default views): 1366 (1971c7) ❌
Number of differences (all views): 0 ✅

Edited: 2024-11-26 10:34:38 UTC
Execution time: 1.24 seconds

[rakyi]

Makes sense to me. Nice drop in bundle size!