Remove obsolete partial
Refer static assets from `../../build/`
Support emoji in code also
Extract unique mixin into ruleset
Change SCSS Lint config

Enabling:
  - ProperrtySortOrder
  - LeadingZero
  - MergeableSelector
  - PlaceholderInExtend
  - Shorthand
  - StringQuotes

Changing:
  - SelectorFormat
Version 6.59.9