clear settings stored in browser after user logged out

src/lib/settings.js

@@ -65,6 +65,10 @@ function getServerSetting(key) {
     return undefined;
 }
 
+function clearSettings() {
+    localStorage.removeItem(settingsLocalStorageKey);
+}
+
 export default {
     getLanguage: () => getOriginalOption('lang'),
     setLanguage: value => setOption('lang', value),
@@ -78,5 +82,6 @@ export default {
     setEnableAnimate: value => setOption('animate', value),
     isEnableAutoDarkMode: () => getOption('autoDarkMode'),
     setEnableAutoDarkMode: value => setOption('autoDarkMode', value),
-    isUserRegistrationEnabled: () => getServerSetting('r') === '1'
+    isUserRegistrationEnabled: () => getServerSetting('r') === '1',
+    clearSettings: clearSettings
 };

src/views/mobile/Settings.vue

@@ -154,6 +154,7 @@ export default {
                     }
 
                     self.$user.clearTokenAndUserInfo();
+                    self.$settings.clearSettings();
                     router.navigate('/');
                 }).catch(error => {
                     self.logouting = false;