editor: Recognize '$' as a Word character.

This fixes PHP variable completion. When we were querying for completions, PHP LS returned proper matches for variables which we filtered out as our query did not include a `$` character.

Z-2819
273a8b4368Piotr Osiewicz committed on 8/18/2023, 3:25:20 PMparent8451e7e
1 file changedLine totals unavailable