feat(Blocks): 🎨 Add side navigation style option to list block. Fixes #189

[knice]

@Herm71 Can you give this a look?

[Herm71]

I see the code but have not been successful in applying it in the block editor.

[Herm71]

Found it. Looks good! I kept looking for a block or pattern as opposed to a sidebar style. Nice.