[DOCS] Update for WASM 🎉

[lishaduck]

What is the bug?

On https://docs.fleaflet.dev/getting-started/installation#renderer, it says that you need CanvasKit. This is no longer true.

How can we reproduce it?

#1885 proves that it support skwasm as well.

Do you have a potential solution?

Update to note that it supports WASM 🥳

(I'd update it myself, but it seems that the docs are closed-source)

Platforms

n/a

Severity

Minimum: Allows normal functioning

[JaffaKetchup]

Thanks for reminder! It looks like the web renderer options have also changed (Flutter have begun to remove HTML by the looks of it).

FYI, the docs are on the docs branch (https://github.com/fleaflet/flutter_map/tree/docs), but we usually edit it ourselves on the web editor anyway :)