Moved code into src folder. Added build for component library.

src/store/app.js

@@ -0,0 +1,47 @@
+import { create } from 'zustand';
+import {
+  DATE_RANGE_CONFIG,
+  DEFAULT_DATE_RANGE,
+  DEFAULT_LOCALE,
+  DEFAULT_THEME,
+  LOCALE_CONFIG,
+  THEME_CONFIG,
+} from 'lib/constants';
+import { getItem } from 'next-basics';
+
+const initialState = {
+  locale: getItem(LOCALE_CONFIG) || DEFAULT_LOCALE,
+  theme: getItem(THEME_CONFIG) || DEFAULT_THEME,
+  dateRange: getItem(DATE_RANGE_CONFIG) || DEFAULT_DATE_RANGE,
+  shareToken: null,
+  user: null,
+  config: null,
+};
+
+const store = create(() => ({ ...initialState }));
+
+export function setTheme(theme) {
+  store.setState({ theme });
+}
+
+export function setLocale(locale) {
+  store.setState({ locale });
+}
+
+export function setShareToken(shareToken) {
+  store.setState({ shareToken });
+}
+
+export function setUser(user) {
+  store.setState({ user });
+}
+
+export function setConfig(config) {
+  store.setState({ config });
+}
+
+export function setDateRange(dateRange) {
+  store.setState({ dateRange });
+}
+
+export default store;