Updated profile settings. Refactored locale saving.

redux/actions/app.js

@@ -1,8 +1,9 @@
 import { createSlice } from '@reduxjs/toolkit';
+import { getItem } from 'lib/web';
 
 const app = createSlice({
   name: 'app',
-  initialState: { locale: 'en-US' },
+  initialState: { locale: getItem('umami.locale') || 'en-US' },
   reducers: {
     updateApp(state, action) {
       state = action.payload;