LibraryPage mockups

[dillonfagan]

I started working on some conceptual mockups in Penpot for the UI. It doesn't deviate much from the original Svelte app, but I did make a few changes.

On top is "dark mode" and below is "light mode." I'm thinking we should ditch the purple background in favor of a more traditional light grey/dark grey and use purple as an action color. I was also trying to make the shadows less harsh.

Please let me know what you think. @mdantuono @jcm427