examples of icss as well as syncing variables

[kroko]

see #1161

added two examples of

• only icss and no modules
• variables in only icss mode and syncing it with both modules as well as JavaScript

[jsf-clabot]

All committers have signed the CLA.

[codecov]

Codecov Report

Merging #1162 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1162   +/-   ##
=======================================
  Coverage   99.36%   99.36%           
=======================================
  Files          10       10           
  Lines         627      627           
  Branches      197      197           
=======================================
  Hits          623      623           
  Misses          4        4           

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[kroko]

Deleted this PR and added new #1163 as trying to pass linting created unnecessary many commits.