Added a dev theme to help with slide aspect ratio while updating content
or for reviewing PRs.
Fixes#1796.
---------
Co-authored-by: Dustin J. Mitchell <djmitche@google.com>
Co-authored-by: Martin Geisler <martin@geisler.net>
With mdbook-i18n-helpers 0.2, reference links are automatically turned
into inline links in the PO files. This means that translators no longer
have to deal with link references in one message and link definitions in
another.
The dprint formatter is a flexible system which will use sandboxed
WebAssembly formatters to format our code (mostly: it calls out to
`rustfmt` for Rust code).
A particularly interesting feature is that dprint can format Rust code
blocks in the Markdown files. However, before we turn that on, we need
to have a way to normalize the Markdown text as it is extracted[1].
That is so that the word put into the translations is kept after the
reformatting.
[1]: https://github.com/google/mdbook-i18n-helpers/issues/19
