Bug: Pressing Shift+Return clears the message input

[galligan]

Describe the bug

When I press shift and return (enter) when in a message input, the message is cleared.

Steps to Reproduce

Steps to reproduce the behavior:

1. Go to any conversation
2. Add text to the message input box
3. Press shift+return
4. Notice message is gone

Expected behavior

I expect this would add a line break.

Desktop

Please complete the following information if you think it is relevant to the bug:

• OS & Version: macOS 13.0
• Browser & Version: Arc v0.72.0 (35182), Chromium Engine v106.0.5249.119