Updates the checker to enter a "neutral" state after feedback is submitted. Also fixes a bug where the layers didn't correctly reset after leaving feedback in emoji mode.
Updates the checker to enter a "neutral" state after feedback is
submitted. Also fixes a bug where the layers didn't correctly reset
after leaving feedback in emoji mode.

conversationai/perspectiveapi-authorship-demo,conversationai/perspectiveapi-authorship-demo,conversationai/perspectiveapi-authorship-demo