Garrett Kelly

Results 2 issues of Garrett Kelly

Adds buttons and moves UI to allow user to modify HP in either direction by increments. Addresses [sander1095#20.](https://github.com/sander1095/DnDCombatTracker/issues/20) ![image](https://user-images.githubusercontent.com/50161911/150711397-be4e1bde-55fd-46ac-bf50-1deaca998faf.png)

It would be great to be able to set up individual combat encounters ahead of time in different tabs or groups, so that they can be quickly called up, edited,...