Added frontend folder structure in Ombase's branch

Frontend/src/store/messageSlice.js

@@ -0,0 +1,15 @@
+import { createSlice } from "@reduxjs/toolkit";
+
+const messageSlice = createSlice({
+  name: "messages",
+  initialState: [],
+  reducers: {
+    addMessage: (state, action) => {
+      return [...state, action.payload];
+    },
+  },
+});
+
+export const messageActions = messageSlice.actions;
+
+export default messageSlice;