- Minimize the composer window into input box only by pressing CMD + M (on MacOS).
- Drag the top border of the input box. The message section will automatically appear–don’t release the left mouse button and keep dragging down to downsize the message section.
There is another shortcut which is CMD + Shift + DownArrowKey to “Reset Position”. But it only centers the composer not downsizing it.
And, yes, it’s terribly annoying and the cursor team should add a padding between the top border of cursor window and the top border of the composer message section and make sure the latter can never overflows.