parameter support for external editor #91
Description
Right now, we only have one editor-string that we open with the notebook-filepath as a parameter.
Some editors need additional parameters to work properly
(The latest neovim-qt added -- to separate neovim-qt parameters from parameters that are sent to neovim)
I would propose a second text-field to enter the parameters. Maybe with support for a placeholder where the notebook filepath is inserted.
I guess, I will use a helper-script to add the parameter for now