idea

[kangkyu]

Currently, we only have two kinds of tasks -- "daily" and regular. But it will be a better product if we have more options to set interval distance.

• [x] two task columns -> one
• [x] Add "next" in the edit/new form for tasks
• [x] Set task progress bar "next" number of days in a similar way to set the bar of "daily"
• [x] if the next number is empty or nil, treat it as regular (blue)
• [x] Thanks!