refactor[darkContext]: Move type darkContextType to types directorie

src/frontend/src/contexts/darkContext.tsx

@@ -1,9 +1,5 @@
 import { createContext, useEffect, useState } from "react";
-
-type darkContextType = {
-  dark: {};
-  setDark: (newState: {}) => void;
-};
+import { darkContextType } from "../types/typesContext";
 
 const initialValue = {
   dark: {},

src/frontend/src/types/typesContext/index.ts

@@ -38,3 +38,8 @@ export type alertContextType = {
   clearNotificationList: () => void;
   removeFromNotificationList: (index: string) => void;
 };
+
+export type darkContextType = {
+  dark: {};
+  setDark: (newState: {}) => void;
+};