Keyboard shortcut (!) does not render warning symbol in editor

Issue Summary

Keyboard shortcut (!) does not render to warning symbol in editor

Steps to Reproduce

1. Type (!) in editor
   

Expected Results

Should render to warning symbol as per https://support.atlassian.com/confluence-cloud/docs/use-symbols-emojis-and-special-characters/

Actual Results

Does not render

Workaround

Use :warning: instead