docs: sync from e6283fddaac92a7dfc70aab569861ca8a8b48a35
docs: sync from 70847417bc4f5bfb790a07a672fcb397c27ef4e3
docs: sync from 66ead7fe32409b85ad7d9a914fec70374ef76353
docs: sync from 06edcc677c82ff4559e65bfc69ed808eb0e1f2d0
Move project layout out of assembly guide
Updated Assembly Guide (markdown)
Add hardware photo thumbnails
Restructure documentation guides
Move feature overview to Wiki page
Add spacing before STL thumbnails
Fix STL preview image URLs
Add STL previews to enclosure table
Update renamed STL reference
Organize wiki guides