The jump bar's progress sprite is improperly scaled

When using a jump or dash on a mount, the progress of the jump bar can exceed the bounds of the jump bar itself.

Steps to Reproduce

1. Summon a tamed horse with a saddle

   /summon horse ~ ~ ~ {Tame:1,equipment:{saddle:{count:1,id:"minecraft:saddle"}}}

2. Ride the horse

3. Hold down space to jump

4. Notice the bar at its maximum is longer than its background