Add join-base directive

[matthewp]

Note that this is just an experiment and is not ready to be merged. If successful it will turn into an RFC.

Changes

• Adds a new directive join-base that can be used on any element to join a path to your base configuration. For example:

<img join-base:src="/images/penguin.png" />

Will get transformed to this HTML assuming your base config is "/docs/":

<img src="/docs/images/penguin.png" />

Testing

• Test case added

Docs

[changeset-bot]

🦋 Changeset detected

Latest commit: ccbeb84

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@astrojs/compiler	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[matthewp]

!preview join-base

[github-actions]

 > [email protected] release /home/runner/work/compiler/compiler > changeset publish "--tag" "next--join-base" 🦋 warn ===============================IMPORTANT!=============================== 🦋 warn Packages will be released under the next--join-base tag 🦋 warn ---------------------------------------------------------------------- 🦋 info npm info @astrojs/compiler 🦋 info @astrojs/compiler is being published because our local version (0.0.0-join-base-20221208164627) has not been published on npm 🦋 info Publishing "@astrojs/compiler" at "0.0.0-join-base-20221208164627" 🦋 success packages published successfully: 🦋 @astrojs/[email protected] 🦋 Creating git tag... 🦋 New tag: @astrojs/[email protected]

[matthewp]

This was an experiment we didn't go with.