[Bug] - Bolus Wizard does not correctly display negative units

[pnharris02]

The Bolus Wizard/Calculator now shows a positive number for IOB when you have positive IOB. In release 3.2.0.4, it was a negative number, which was logical because it had to be deducted from the calculated dose.

This was brought up in Discord by @barisk81 and discussed by myself and @robby
https://discord.com/channels/629952586895851530/1199783453793734677/1334593953734983743

I suggest, to reduce confusion, the actual IOB is shown in the horiz centre of the dialog, above the COB figures, then the inverse/negative number is shown in the right column, similar to v3.2

A second visual bug on this screen is that any negative number in the right column causes the "U" after the figure to wrap to the next line. And in the case of IOB, the bottom of the U is also truncated slightly.

The attached screenshot pairs are from two different times, one in September to show 3.2 behaviour and one from this morning on 3.3.1.3, with a rough sketch of my suggested resolution

[robertrub]

Yes, it would be logical to keep the same math notation for all the numbers. If it is added to the bolus calculation, it should be + (or no sign) but if it will be subtracted, it should have the - sign in front.

We can have the IOB value in another column as it is the case with the trends