Is there an existing issue for the same bug? (If one exists, thumbs up or comment on the issue instead).

• I have checked the existing issues.

Describe the bug and reproduction steps

In the new UI if you do a multi line prompt, the prompt box becomes big to fit the multiline but there's no way to reduce the size. You have to refresh the browser.

OpenHands Installation

Docker command in README

OpenHands Version

main

Model Name

N/A

Operating System

None

Logs, Errors, Screenshots, and Additional Context

No response