Remove dependency resolution override for React 19 types (#39569)

Co-authored-by: ChaosExAnima <ChaosExAnima@users.noreply.github.com>

app/javascript/mastodon/hooks/useAudioVisualizer.ts

@@ -11,8 +11,8 @@ const normalizeFrequencies = (arr: Float32Array): number[] => {
 };
 
 interface AudioVisualiserOptions {
-  audioContextRef: React.MutableRefObject<AudioContext | undefined>;
-  sourceRef: React.MutableRefObject<MediaElementAudioSourceNode | undefined>;
+  audioContextRef: React.RefObject<AudioContext | null>;
+  sourceRef: React.RefObject<MediaElementAudioSourceNode | null>;
   numBands: number;
 }
 
@@ -21,7 +21,7 @@ export const useAudioVisualizer = ({
   sourceRef,
   numBands,
 }: AudioVisualiserOptions) => {
-  const analyzerRef = useRef<AnalyserNode>();
+  const analyzerRef = useRef<AnalyserNode>(null);
 
   const [frequencyBands, setFrequencyBands] = useState<number[]>(
     new Array(numBands).fill(0),