feat: add message extras display to the chat
Description
Adds message extras data for UI to render TanukiBot sources. It will take effect together with !1116 (merged)
Resolves #1072 (closed)
Screenshots (if appropriate):
Types of changes
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Bug fix (non-breaking change which fixes an issue) -
New feature (non-breaking change which adds functionality) -
Breaking change (fix or feature that would cause existing functionality to change) -
Documentation -
Chore (Related to CI or Packaging to platforms) -
Test gap
Related to #1072 (closed)