ELSIF in sql editor isn't color highlighted

(quick searching for "ELSIF" didn't showed existing issues, so I hope this is not double post)
(hasura version I used - 2.8.1)
very simple:
in provided RAW SQL editor when writing pgplsql function I noted that ELSIF wasn't highlighted as proper syntax, which is a bit confusing.

Reproduce the issue in the provided RAW SQL editor with a PL/pgSQL function containing ELSIF, using Hasura 2.8.1 as the reported reference. Trace the editor's SQL syntax-highlighting behavior and verify that ELSIF receives the appropriate syntax color without affecting other highlighting.

Written by the indexing model from the issue text.