Co-authored-by: Luis Verde Arregoitia <[email protected]>

* add note about mobile browser mem limit

* Update src/docs/index.qmd

---------

Co-authored-by: George Stagg <[email protected]>

…ed (#477)

* Bump dev version

* Correct VFS image file extension in lzfs.R script

* Remove `.data` assumption in `webr::mount()`

* Add support for v2.0 VFS filesystem image format

* Avoid Emscripten WORKERFS `mount()` under Node

Instead, use our own `mountImageData()` function to create VFS nodes for
each file in the VFS metadata package.

TODO: This currently handles only metadata given in the form of the
`packages` property. Emscripten supports additional `files` and `blobs`
properties, and in the future we should also support those here.

Fixes #328.

* Update webr::mount() to default to v2.0 VFS images

* Update documentation for VFS v2.0

* Update NEWS.md

* Reorganise VFS mounting into TS module `mount.ts`

* Mount as URL under Node if source begins http[s]

* Add unit tests for mounting WORKERFS and NODEFS

* Export types from webr-chan.ts

* Fallback to mounting `.data` before using archive

Also improves warning messaging during fallback(s).

* Interpret metadata values as signed integers

* Read metadata from tar contents if hint is missing

* Add unit test for .tgz with no metadata hint