7.0.0

HEADER & FOOTER

- Removed Custy builder
- Added Widgets builder (require Edje WP Libbrary 4.0)

CSS

- Added CSS variables that is previously generated by Custy
- Moved some CSS variables in root to more specific selector. For example `--postsPerRow` goes to `.post-archives` selector.

ARCHIVE & SINGLE

- Removed any reliance on Custy's theme mod.