Ability to pause expenses

[fdagpigj]

Is your feature request related to a problem? Please describe. Sometimes, expenses become temporarily unneeded but I don't want to delete them entirely. And sometimes you might want to see how the situation would change if you were to cut out some expenses before committing to it.

Describe the solution you'd like A pause button for each expense. A paused expense could be displayed as eg. ~striked over~ or greyed out, would not be included in the total (would instead show a separate total of paused expenses), and could be easily resumed at any time.

Describe alternatives you've considered, if any I saw a feature request for archiving expenses, but sometimes the removal of an expense is so temporary that I think displaying them in the list would make sense.

[chrsdk]

This would be very useful in combination with #48 (net income tracking).

I would like to add income as negative expensive transactions, like explained in #48.

But then I would also like to return to the default functionality of just tracking expenses by e.g. long-clicking on them, which would grey them out and remove them from the totals.