Major 4.0 (#380)

- Migrated to WXT
- Migrated to NPM
- Added Insert & copy action
- Added ESLint

utils/useTimeout.ts

@@ -0,0 +1,14 @@
+import { useState } from "react";
+
+export default function useTimeout(timeout: number)
+{
+	const [isActive, setActive] = useState<boolean>(false);
+
+	const trigger = () =>
+	{
+		setActive(true);
+		setTimeout(() => setActive(false), timeout);
+	};
+
+	return { isActive, trigger };
+}