Global option to require double-click to edit and make single-click uncollapse

[clark800]

Considering a use case where all notes are collapsed by default as suggested in https://github.com/apankrat/nullboard/issues/95, it becomes more important to have an easy way to uncollapse a note and I think the best option would be doing it with a single click and then it re-collapses after it loses focus.

In this case, editing would require a different gesture like double-click, and I actually like this because editing with a single click makes the board feel a bit too easily mutable. For example, I would prefer an interface where I can directly select and copy a note's text without triggering an edit. And this also prevents some unintentional triggering of the edit mode with failed drags or mindless clicks. And to me it would make the interface feel a little "safer" overall against unintentional edits. Most of the time in my flow tasks are write-once and then just get moved around like cards so there isn't a need to make editing the easiest action.