fix: removed command tab frames

[simonhyll]

What kind of changes does this PR include?

Gets rid of frames around CommandTabs code blocks.

Description

• Closes #
• What does this PR change? Give us a brief description.
• Did you change something visual? A before/after screenshot can be helpful.

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[simonhyll]

The goal is just to go from this To this For now at least. It's an improvement, I'll merge it, we can think about other places to fix the frames in a followup PR.