Updated Mastery emotes on PBE

Just a clarification, the ones being displayed here from PBE are simplified for display at small sizes in the collection on champion cards. We got feedback with the live mastery that the shapes were too complex and didn't read at small sizes, which we agreed with.

The ones in the game itself look different, at least to my eye. I believe they are on PBE as well and would encourage folks to take a look and give feedback on those as well. They are also in-full 3D as opposed to 2D (live version), which adds a nice dimensionality to them, IMO.