ParameterWidget needs better size handling
ParameterWidget has way too much white space when showing "small" editors
Steps to reproduce
Open a plotter and look at the parameters
What is the current bug behavior?
Depending on the type of parameter and it's setup, there's too much vertical space.
What is the expected correct behavior?
We should have the editor take just the height needed.
The widget should be resized when the current editor changes