LWS-263: Supersearch pills

[jesperengstrom]

Description

Tickets involved

LWS-263

Solves

Adds qualifier pills in the CM editor based on lxlQuery syntax tree

Summary of changes

• Create extension/qualfierPlugin.ts and add to SuperSearch.
• The plugin consists of:
  • A mark decorator that creates a wrapper .qualifier element.
  • A widget decorator that adds a remove link/button using new svelte component QualifierRemove (not really working atm!)
  • A replace decorator that replaces the qualifier key/operator with new svelte component QualifierKey.
  • Two bundled extensions that adds atomic ranges and inserts a quote for empty qualifierValues.
• Language changes:
  • Replace nodes EqualOperator and CompareOperator with QualifierOperator to make sure it's always present. Update tests, tags, classes & style accordingly.
  • Don't export BooleanOperator to avoid it being highlighted outside of a legal query.