make input area selection only select the text

[plutonium-239]

Description

when dragging in the input area, it would be great if only the actual input got selected, instead of falling back to the terminal's selection which includes the ui as well.

[andrinoff]

Hey! Thank you for your issue @plutonium-239!

Crush uses bubbles' textarea. transferring issue there.

Just to make sure, can you, please, describe the flow that you want with it?

[plutonium-239]

I want the flow to be similar to how selecting in a regular "rendered" text works in crush (for example the LLM's output). I am able to select only the output text:

• the selection area is confined to the message area
• the selection doesn't include the UI elements like the left "current message" bar/indicator, etc.
• it has a different color than the terminal's native selection
• on copying, crush gives a "Selected text copied to clipboard" message in the status bar with a level of "OKAY!"