Update Channel Header Icon buttons to use compass icons
Not all of these icons are using compass icons within the icon buttons. Not sure if this is an issue with these items being plugins, but some are using the icon font and others are not. We should use the compass icon font wherever possible here.
Icons to use from the compass icons font:
QA Test Steps
We need to have a conversation with Integrations about how best to handle icons coming from plugins. Ideally the new Icon Button Component can be used to help solve this.