feat(action-list): allow specification of action-list row height and improve spacing

[danyill]

Closes #5

This is a "cheap and cheerful" fix.

We:

• Don't allow breaking of the first line -- it becomes confusing to read
• Prevent variable height rows - it will not work with the buttons - perhaps it should be qualified more
• Introduce a new property for height on action-list
• Improve spacing on lists to make action icons more evenly spaced
• Add one small test (updated baseline for Chrome only - assuming these will need to be regenerated anyway)
• The way I've added the styling is as per https://lit.dev/docs/components/styles/#style-element

I don't think this will terribly break compatibility with other uses but please consider this.

I will update the PR aligned with this in oscd-publisher OpenEnergyTools/oscd-publisher#7 and provide some screenshots for assessment so that with an npm link it can be examined more closely

[danyill]

I would be grateful for a review and/or discussion on this

[danyill]

More updates on this PR soon! Don't look yet 😉 @ca-d helped me improve it muchly and tomorrow I will update and add some commentary.

[danyill]

We've added some:

• theme styling
• headline/supporting text now slotted correctly

I'd be grateful for a review at an appropriate time.

[JakobVogelsang]

Hi Dan, I think it look promising. I just did scope thie element and added visual regresion test to run on a PR. I would ask you taking over the changes into the new main and let the github action generate the new screenshots. Sorry for the unconvinience. I want though to have that feature in.

[JakobVogelsang]

Does this PR solve you problems with the different list element hights?

[danyill]

I would ask you taking over the changes into the new main and let the github action generate the new screenshots. Sorry for the unconvinience.

I have merged it (it wasn't clean so I had to do somewhat by hand, hopefully without error).

Nice to see your new scoped components and the approach there.

Does this PR solve you problems with the different list element hights?

Yes, I think this will keep the heights correct.

[danyill]

Just to note that I've removed open-scd theme styling as requested and included the artifacts from the CI pipeline. Thanks for the (in-person) review.