refactor model menu items into component

src/store/modelSlice.js

@@ -0,0 +1,36 @@
+import { createSlice } from '@reduxjs/toolkit';
+
+const initialState = {
+  models: [
+    {
+      name: 'ChatGPT',
+      value: 'chatgpt'
+    },
+    {
+      name: 'CustomGPT',
+      value: 'chatgptCustom'
+    },
+    {
+      name: 'BingAI',
+      value: 'bingai'
+    },
+    {
+      name: 'ChatGPT',
+      value: 'chatgptBrowser'
+    }
+  ]
+};
+
+const currentSlice = createSlice({
+  name: 'models',
+  initialState,
+  reducers: {
+    setModels: (state, action) => {
+      state.models = [...state.models, ...action.payload];
+    }
+  }
+});
+
+export const { setModels } = currentSlice.actions;
+
+export default currentSlice.reducer;