refactor: Context 분리

+import { Context, createContext } from "react";
+
+export interface ImageLoadContextType {
+  imageLoad: boolean,
+  setImageLoad: Function
+}
+
+export const ImageLoadContext: Context<ImageLoadContextType> = createContext<ImageLoadContextType>({
+  imageLoad: false,
+  setImageLoad: () => {}
+});
\ No newline at end of file

+import { Context, createContext } from "react";
+
+export interface SubmenuContextType {
+  visible: boolean,
+  onChange: Function
+}
+
+export const SubmenuContext: Context<SubmenuContextType> = createContext<SubmenuContextType>({
+  visible: true,
+  onChange: () => {}
+});
\ No newline at end of file

 import React, { ChangeEvent } from "react";
 import ToastEditor from "tui-image-editor";
-import { SubmenuContext } from "../EditorPage";
+
+import { SubmenuContext } from "context/Submenu";
 
 import "./EditorHeader.scss";
 

-import React, { useRef, useEffect, useState, Context } from "react";
+import React, { useRef, useEffect, useState } from "react";
 import ToastEditor from "tui-image-editor";
 
 import EditorHeader from "./EditorHeader";
 
 import { editorOptions } from "utils/editorOptions";
+import { ImageLoadContext } from "context/ImageLoad";
+import { SubmenuContext } from "context/Submenu";
 
 import "tui-image-editor/dist/tui-image-editor.css";
 import "./Editor.scss";
@@ -12,19 +14,10 @@ import "./EditorPage.scss";
 // @ts-ignore
 const initialEditor:ToastEditor = new ToastEditor(document.querySelector("#hidden-editor"), editorOptions);
 
-interface SubmenuContextType {
-  visible: boolean,
-  onChange: Function
-}
-
-export const SubmenuContext: Context<SubmenuContextType> = React.createContext<SubmenuContextType>({
-  visible: true,
-  onChange: () => {}
-});
-
 function EditorPage() {
   const imageEditorRef = useRef<HTMLDivElement>(null);
   const [editor, setEditor] = useState(initialEditor);
+  const [imageLoad, setImageLoad]: [boolean, Function] = useState(false);
   const [submenuVisible, setSubmenuVisible] = useState(true);
 
   useEffect(() => {
@@ -43,8 +36,10 @@ function EditorPage() {
   return (
     <>
       <SubmenuContext.Provider value={{ visible: submenuVisible, onChange: onChangeSubmenuVisible }}>
-        <EditorHeader editor={editor} imageLoad={false} />
-        <div className={`my-editor tui-image-editor-container left ${!submenuVisible && "submenu-hidden"}`} ref={imageEditorRef} />
+        <ImageLoadContext.Provider value={{ imageLoad, setImageLoad }}>
+          <EditorHeader editor={editor} imageLoad={false} />
+          <div className={`my-editor tui-image-editor-container left ${!submenuVisible && "submenu-hidden"}`} ref={imageEditorRef} />
+        </ImageLoadContext.Provider>
       </SubmenuContext.Provider>
     </>
   );

 import React from "react";
 
+
 function ImageResizer() {
   return (
     <div>이미지 크기 변경</div>