per-person breakdown

[jancborchardt]

When looking at the People-list, there currently is no way to know how the balance comes together. You don’t know which transactions a specific person participated in. This leads to not being sure if the balance for a specific person is correct.

We should introduce a per-person breakdown: When tapping a person entry, all the transactions they participated in should be listed much like in the transaction list. In addition, on the bottom right of each entry (on the same line of who paid how much) there should be an either red or green number with the positive or negative balance this transaction resulted in for that person.