[FEATURE]: message actions on AI messages (copy button etc)

[Davincible]

Feature hasn't been suggested before.

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Describe the enhancement you want to request

I have seen bits of talk on this, but currently copying entire AI messages is a bit cumbersome with the drag to copy thing

Having that nice pop up with actions for user messages also on agent messages would be an easy add I think and allows to copy entire agent responses in 2 clicks

Possible future extension of this would be add an action for "Save to file" > save the AI response to a file directly