fix(Interaction): Fixes a few things related to !56:
requested to merge vr-vis/VR-Group/unreal-development/david.gilbert/rwth-vr-toolkit:improve_grabbing into dev/5.3
- Some more expressive renamings
- Adds logging in case nullptr is returned
- Moves TryRelease to private because currently it does not handle Broadcasts correctly. Will not touch that functionality in this commit, but should be revisited.
- Removes some unnecessary UPROPERTY()s