fix typos

Author: felixtrz

src/targets.tsx

@@ -26,6 +26,6 @@ export const Target = ({ targetIdx }: TargetProps) => {
       -Math.random() * 5 - 5
     );
     targets.add(target);
-  }, [target]);
+  }, []);
   return <primitive object={target} />;
 };

tutorial/chapter5.md

@@ -30,7 +30,6 @@ Next, we’ll render the score using the `Text` component from `@react-three/dre
 
 ```tsx
 import { Text } from "@react-three/drei";
-import { useScoreStore } from "./score";
 
 export const Score = () => {
   const formatScoreText = (score: number) => {