Styling enhancements

[ndugger]

First of all, huge fan of what you've built here. Super impressed, and even more grateful for the work you've put into this.

I was working on styling the editor to match my existing UI, and ran into some things that I think could be improved (and I'd be happy to contribute if that's something you're open to):

1. Border colors
   The table component uses the --notectl-border variable, with no way to override it for the table specifically, whereas there are variables for other components (like code-block). I have a use case where I am already rendering a border on the containing component and need to set the editor border to none, while retaining a visible border on the table component.

2. Shadow dom parts
   Using parts (https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors/::part) would greatly improve customizability also. It would allow someone to target a specific element to modify the styles beyond just setting a variable. Think of it as the more hands-on/complex way to customize a theme...

That's it for possible enhancements I've come up with so far. I opted in to just creating a Plugin which injects the styles I want and that works beautifully, just figured the enhancements could still be useful to make it even easier for some folks.

[Samyssmile]

Hey, thanks a lot for the kind words and the thoughtful feedback!

Good news: both of these landed in #123 which got merged earlier today.

You now have --notectl-table-border (plus --notectl-table-cell-bg and --notectl-table-header-bg) that falls back to the global --notectl-border if you don't set it. So your exact use case works out of the box now: kill the editor border, keep the table border.

Shadow Parts are in too. Pretty much everything is exposed: editor, content, toolbar, toolbar-button (with -active and -overflow-button modifiers), table, table-row, table-cell, code-block, blockquote and a few more. Full list is in the styling guide once the next release is out.

Would be awesome if you give it a try once it ships and let me know if anything is still missing for your setup!

[Samyssmile]

Quick follow-up: full docs with the parts inventory and token cascade are here: https://samyssmile.github.io/notectl/guides/styling/