chore(deps): update dependency eslint-plugin-jsdoc to v33

See merge request !48

app-shell: Support the new scoped elements registry polyfill

See merge request !50

Register the activity properly and create a scoped element if the API is there.

One all bugs are fixed upstream this should allow us to switch to lit v2
without any further changes.

chore(deps): lock file maintenance

See merge request !49

https://docs.renovatebot.com/configuration-options/#lockfilemaintenance

In newer versions there is now a normal method for this which also supports
dynamically added components.

The static version is deprecated and removed in 2.0, so we need to port here.

showcase: Fix syntax highlighting

See merge request !47

Include the highlight.js css in all activities and move the
code css into the app, so it's defined where it is used.

Make the toolkit-showcase package part of the main workspace package

See merge request !46

It's confusing that there are two lock files in this repo and two
overlapping workspaces. Ideally everything should be in sync.

Switch from chai to @esm-bundle/chai

See merge request !44

This has proper support for rollup while providing the same API.

This is what open-wc recommends now and uses in their @open-wc/testing package

file-handling: fix a dep cycle

See merge request !43

Make sure every package supports eslint and run in CI

See merge request !45

FileHandlingClipboard and FileSink depend on each other. Register
the later at runtime so we don't get a dependecy cycle for imports.

Remove duplicated clipboard warning, disable nextcloudfilepicker upload button if no files are selected

chore(deps): update all non-major dependencies

See merge request !42

Otherwhise it will try to access it an error out when trying to open
the dialog.

In case we want to get the package path of the current package, but it
isn't in node_modules (as is the case with yarn2) we need to find it
ourselves.

In case the package.json in the current dir has the same name we just use
it as a base. This is after rollup lookup failed, so this is just a fallback.