Remove obb-collider component when removing grabbable

[mrxz]

Fixes #5857

Description:
The grabbable component automatically adds the obb-collider component to the entity. Upon removal of the grabbable component, the obb-collider remained. This PR adds removal logic such that the grabbable cleans up after itself and also removes the obb-collider.

Changes proposed:

• Let grabbable also remove obb-collider component
• Fix race conditions in grabbable component where event listeners would trigger after the component was already removed.