[UI] Support SPARQL-star

[kinow]

Version

4.7.0

Feature

The query editor handles SPARQL grammar & code highlight/auto-complete using YASGUI.

There's an issue for tracking this there: https://github.com/TriplyDB/Yasgui/issues/190

There's also a draft pull request for the issue above: https://github.com/TriplyDB/Yasgui/pull/215

Once these two are solved in TriplyDB/Yasgui, it should be a matter of updating the version of YASQE used. Alternatively, if there's no response from TriplyDB about the PR's, we can use the generated output of the prolog parser, and monkey-patch CodeMirror locally.

Are you interested in contributing a solution yourself?

Yes