fix: Await sendWebSocketMessage promise

[FrederikBolding]

The type for the sendWebSocketMessage hook was wrong. The function returns a promise and must be awaited, previously this would result in unhandled rejections.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.28%. Comparing base (d533022) to head (9b0e8f3).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3608   +/-   ##
=======================================
  Coverage   98.28%   98.28%           
=======================================
  Files         417      417           
  Lines       11772    11772           
  Branches     1832     1832           
=======================================
  Hits        11570    11570           
  Misses        202      202           

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[mikesposito]

LGTM!