Create easier ability to copy out responses

[chrisglein]

Scenarios

• Copy the human query blocks
• Copy individual AI response block
• Copy code blocks
• Copy out the whole script for easy paste into an email, doc, etc. #143

Notes

• The clipboard module is set up for CodeBlock, so the infrastructure is already in place for this
• Right click would be most discoverable. Is it possible to turn that on for a Text component or does it need to be TextInput?