Distinguish between automatically ticked / no and automatically ticked / unknown

[hiqua]

Right now, if a checkmark is not expected, there's no way to tell whether I've entered the data or not. If you have question marks activated, you potentially want to either tick or untick every habit, instead of leaving some with unknown data points. With this workflow, the current representation makes it harder.

From #96 (reply in thread):

In the current version of the app, YES_AUTO means "you did not perform the habit, but a repetition was not expected for that date," while NO means "you did not perform the habit, and a repetition WAS expected for that date"

I suggest that we represent the two states (unexpected and NO, unexpected and UNKNOWN) differently when question marks are activated, e.g. with their usual symbols but with their borders colored, just like the checkmark.