bug: Tasks dialog scroll is too long and shows empty lines #20232

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Please watch this video from Ben at 3:40 time mark: https://www.loom.com/share/1f3e58fef2344eb794b8e9f1119de2ec

The scroll for the tasks dialog with the agent is too long and you can scroll way further than the text ends. This is not a big problem as no context is lost, but it is annoying.

Relevant Log Output

Expected Behavior

The scroll is only as long as the text inside of the dialog panel.

Steps to Reproduce

Watch the video https://www.loom.com/share/1f3e58fef2344eb794b8e9f1119de2ec at 3:40 time mark to see the behavior.

Environment

• Host OS:
• Coder version:

Additional Context

No response