i18n(import): web.dev links and small corrections

[exterkamp]

Summary
Automatic import of tc/ strings, 90% web.dev links, 10% other.

meta: I wanted to import this to keep the import PR's small, since a big one is coming for Stack Packs.

[connorjclark]

one day, could we have some sanity checks for these locale files? I am thinking:

1. parse the english strings for markdown links / code snippets, and ensure each language has the same number
2. more?

[patrickhulce]

I like these ideas @connorjclark :)

I wanted to import this to keep the import PR's small, since a big one is coming for Stack Packs.

that's very kind of you @exterkamp, but fwiw I'm not sure what that really does. as it stands I'm not sure we fully review the 2k lines of change when they're "small" 😆

EDIT: I say this because I'm afraid I might have misunderstood the review burden here, what are we intended to examine with these other than loosely scanning that things look OK?

[brendankenny]

• parse the english strings for markdown links / code snippets, and ensure each language has the same number

we almost have this :)