Gragas Q and R - fix clunky behavior

(patch 6.3)

Currently: Gragas's Q and R [if the cursor is outside the ability range radius at the time of the ability activation] will move Gragas (which moves the ability range radius) to a location such that the cursor's saved position (at the time of the ability activation) is inside the shifted ability cast radius before casting the ability.
**In summary, the cast event is queued behind a move event.

I propose: Gragas's Q and R [if activated outside the range indicator] be changed to immediately cast the ability, not move Gragas then cast the ability. **In summary, cast immediately.

After thought: The current behavior is similar to point-and-click abilities, despite being a skillshot. Therefore it should be changed to behave like a skillshot (similar to Olaf Q and Fizz R).