re-structure to monorepo.

packages/webapp/src/store/localStorage.tsx

@@ -0,0 +1,24 @@
+// @ts-nocheck
+
+const LOCAL_STORAGE_NAMESPACE = 'application_state';
+
+export const loadState = () => {
+  try {
+    const serializedState = localStorage.getItem(LOCAL_STORAGE_NAMESPACE);
+    if (serializedState === null) {
+      return undefined;
+    }
+    return JSON.parse(serializedState);
+  } catch(error) {
+    return undefined;
+  }
+};
+
+export const saveState = (state) => {
+  try {
+    const serializedState = JSON.stringify(state);
+    localStorage.setItem(LOCAL_STORAGE_NAMESPACE, serializedState);
+  } catch (error) {
+    throw new Error('Something want wrong');
+  }
+}