Plugin Step Configuration - Font and Update Button Default

[daryllabar]

So many ways the Unsecure/Secure configuration needs enhancement:

1. Most configurations are either going to be JSON/XML. As such, the Font should be mono spaced. I don't care if its Courier New, font type, but something that is monospaced so it's easy to read the JSON/XML.
   
2. Allow for resizing (the entire dialog window as a whole, and a vertical resizing bar between the two halves), enable a horizontal bar, and turn off word wrap:
   
3. Setting the Update button as the default makes sense, unless the user is focused on a Multi-lined text box. In this case, the Default button should be cleared. This becomes a major potential issue if attempting to update the JSON/XML config, and the user hits assuming that they would get a newline, and instead, commits their potentially broken changes.