reorganize components and add root import plugin

src/store/messageSlice.js

@@ -0,0 +1,18 @@
+import { createSlice } from '@reduxjs/toolkit';
+
+const initialState = [];
+
+const currentSlice = createSlice({
+  name: 'messages',
+  initialState,
+  reducers: {
+    setMessages: (state, action) => {
+      const { payload } = action;
+      return [...payload];
+    },
+  }
+});
+
+export const { setMessages } = currentSlice.actions;
+
+export default currentSlice.reducer;