fix: Replace node-sass with sass(Dart Sass) (#316)

node-sass doesnt work on some envs.
For 2 years now, LibSass and node-sass has been deprecated
Read more: https://sass-lang.com/blog/libsass-is-deprecated

Also, recommend using node 16 for dev. env

Author: sravan-s

.github/workflows/test-n-lint.yml

@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14]
+        node-version: [16]
 
     steps:
     - uses: actions/checkout@v2

README.md

@@ -38,13 +38,8 @@ And many more...
 ### Prerequisites
 
 You need to install:
-* nodejs 14 LTS https://nodejs.org/en/download/
-* npm 7 or above
-
-```
-npm 14 deprecated warnings for fsevents& [email protected] will be fixed when storybook is updated to webpack 5
-https://github.com/storybookjs/storybook/issues/12425#issuecomment-723043137
-```
+* nodejs 16 LTS https://nodejs.org/en/download/
+* npm 8 or above
 
 We tried development on Mac OS / Linux systems. You might encounter problems in running `npm run build` in Windows machines