Make composer pane resizable #20
Description
Is your feature request related to a problem? Please describe.
The size of the composer pane is fixed. This limits the composer's text area height and forces the user to scroll when writing many lines.
Describe the solution you'd like
Make the composer pane resizable, relative to the steps pane.
Describe alternatives you've considered
Adjust the size of the text area based on the text length, such that it is always fully visible without scrolling, up to a certain point (to make the steps pane still visible).