Add setting to allow user to choose if word wrapping in the editor should be enabled

[perber]

Add a setting that allows users to choose whether word wrapping should be enabled in the editor.

Problem:

Long Markdown tables currently wrap in the editor, which makes them difficult to edit.

[perber]

As a quick fix, I’ll enable word wrap as in the previous version.

[perber]

OK, decided to implement it like preview is handled. Default behaviour is using line wrapping.