Bump node-sass from 4.13.1 to 7.0.0

Bumps [node-sass](https://github.com/sass/node-sass) from 4.13.1 to 7.0.0.
- [Release notes](https://github.com/sass/node-sass/releases)
- [Changelog](https://github.com/sass/node-sass/blob/master/CHANGELOG.md)
- [Commits](sass/node-sass@v4.13.1...v7.0.0)

---
updated-dependencies:
- dependency-name: node-sass
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

assets/stylesheet/main.scss

@@ -468,4 +468,4 @@ button, a {
 //http://data.undp.org/resource/myer-egms.json
 
 // unsplash api
-//fetch("https://api.unsplash.com/photos/?client_id=94eefc493013f829aa2a14ce2ec9b443781a11ea9c1fde12c007a9d0cf817598").then(r=>r.json()).then(d => a.push(d));
+//fetch("https://api.unsplash.com/photos/?client_id=CLIENT_ID").then(r=>r.json()).then(d => a.push(d));