feat: add new theme berry (#860)

* feat: add theme berry

* docs: add development notes

* fix: fix blank page

* chore: update implementation

* fix: fix package.json

* chore: update ui copy

---------

Co-authored-by: JustSong <songquanpeng@foxmail.com>

web/berry/src/store/siteInfoReducer.js

@@ -0,0 +1,18 @@
+import config from 'config';
+import * as actionTypes from './actions';
+
+export const initialState = config.siteInfo;
+
+const siteInfoReducer = (state = initialState, action) => {
+  switch (action.type) {
+    case actionTypes.SET_SITE_INFO:
+      return {
+        ...state,
+        ...action.payload
+      };
+    default:
+      return state;
+  }
+};
+
+export default siteInfoReducer;