Switch to qrcode-generator library

ts/hooks/useDevicePixelRatio.ts

@@ -0,0 +1,27 @@
+// Copyright 2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { useEffect, useState } from 'react';
+
+export function useDevicePixelRatio(): number {
+  const [result, setResult] = useState(window.devicePixelRatio);
+
+  useEffect(() => {
+    const update = () => {
+      setResult(window.devicePixelRatio);
+    };
+
+    update();
+
+    const mediaQuery = window.matchMedia(
+      `screen and (resolution: ${result}dppx)`
+    );
+    mediaQuery.addEventListener('change', update);
+
+    return () => {
+      mediaQuery.removeEventListener('change', update);
+    };
+  }, [result]);
+
+  return result;
+}