Fixed dialogue errors for Felicia and the Wii Fit Trainer

Your Robot Uncle has gone through the submitted reports for Felicia and the Wii Fit Trainer and fixed all of their known dialogue issues.

I also put the Trainer through spellcheck, very likely for the first time since her rework.

Lastly, I removed some pre-rework Trainer images that I was involved with that are now unsuable (no sweat stains) or duplicated. These four images are currently not required by her dialogue file.