Add image component for editor (#57)

* Add image component

* More image editor

* add more image changes

packages/email-editor/src/hooks/useEvent.ts

@@ -0,0 +1,16 @@
+import { useCallback, useLayoutEffect, useRef } from "react";
+
+export const useEvent = <T extends (...args: any[]) => any>(handler: T): T => {
+  const handlerRef = useRef<T | null>(null);
+
+  useLayoutEffect(() => {
+    handlerRef.current = handler;
+  }, [handler]);
+
+  return useCallback((...args: Parameters<T>): ReturnType<T> => {
+    if (handlerRef.current === null) {
+      throw new Error("Handler is not assigned");
+    }
+    return handlerRef.current(...args);
+  }, []) as T;
+};