refactor: nav and search.

feat: use recoil to replace redux
feat: use react-native

THIS IS NOT FINISHED. DONT USE THIS

client/src/store2/textSlice.js

@@ -0,0 +1,19 @@
+import { createSlice } from '@reduxjs/toolkit';
+
+const initialState = {
+  text: '',
+};
+
+const currentSlice = createSlice({
+  name: 'text',
+  initialState,
+  reducers: {
+    setText: (state, action) => {
+      state.text = action.payload;
+    },
+  }
+});
+
+export const { setText } = currentSlice.actions;
+
+export default currentSlice.reducer;