Non-generated transactions dated in the future indicate estimated date

[jhauberg]

Manually entered transactions (set in the future) are displayed exactly like generated/forecasted transactions, where the arrow (<) would typically indicate "by/before this date".

However, for non-generated transactions, that is not right. You entered the transaction and gave it a date, specifically, so that date is the date and not just an estimation. This should be clearly visible, and I think we do that by just getting rid of the little arrow (or exchanging it with !).

Here's an example (assuming date is 2020/02/13):

~          $ 0.95  < 2020/02/24 JNJ

I think this would be better:

~          $ 0.95    2020/02/24 JNJ

This seems simple, but the problem is that we currently have no way of distinguishing between a concrete, manually entered transaction and a generated transaction (e.g. Transaction vs. FutureTransaction). That needs to be solved first, I'd say.