Improve license builder

[nilsnh]

Milestone

This PR accomplishes #20 .

Getting there

• I reworked the license builder for desktop and mobile.
• For each license option we have functionality for toggling, finding and reading help text.
• Additionally there's a remove all modules, and add all modules buttons.

Interesting bits

• I renamed filenames to dash-case because I figured that would be the most uniform option. This way we don't have to juggle PascalCase for classes and camelCase for other files.
• I used a checkbox + label to express toggling modules. I believe that makes the most sense semantically, but we will need to confirm that with user tests.
• Because we have so many modules I made the module list scrollable on desktop and mobile.
• For some of the functionality i use .focus() to try and help screenreaders, but I have not confirmed that it works as intended.
• When styling web components it's useful to know about :host and ::slotted.
• I hid the unfinished license badge for now, but that can off course be added back when it's done.

What I need help with

• I need help with user testing the license builder.
• Need help with developing the CSS further. For now the buttons are very much vanilla.

What's next

After merging, this PR should allow us to:

• Update introductory content on the build/ page.
• Update the module help text for tooltips.
• Otherwise do more work on the CSS.

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[CoralineAda]

@nilsnh This is looking amazing! Love the way the builder interface is evolving 🖤