fix: dark-mode-on-login-page (#6810)

Author: kartik-lamkhade

frontend/common/stores/account-store.js

@@ -1,5 +1,5 @@
 import { matchPath } from 'react-router-dom'
-
+import { storageGet, storageSet } from 'common/safeLocalStorage'
 const Dispatcher = require('../dispatcher/dispatcher')
 const BaseStore = require('./base/_store')
 const data = require('../data/base/_data')
@@ -348,7 +348,11 @@ const controller = {
       store.loaded()
     } else if (!user) {
       store.ephemeral_token = null
+      const darkMode = storageGet('dark_mode')
       AsyncStorage.clear()
+      if (darkMode) {
+        storageSet('dark_mode', darkMode)
+      }
       if (!data.token) {
         return
       }

frontend/web/components/pages/HomePage.tsx

@@ -351,7 +351,7 @@ const HomePage: React.FC = () => {
                     {!isSignup ? (
                       <>
                         <Card
-                          className='mb-3 bg-white p-3'
+                          className='mb-3 bg-body p-3'
                           contentClassName={classNames(
                             'd-flex flex-column gap-3',
                             { 'bg-light200': preventEmailPassword },