Feature/settings backup (#453)

* Show loading indicator for "NumberSetting"

* [i18n] Add lowercase interpolation format

* Add required dependencies for time settings

* Dynamically import dayjs locales for languages

* Add backup settings

src/i18n/index.ts

@@ -19,6 +19,14 @@ export const i18n = use(initReactI18next)
         fallbackLng: 'en',
         interpolation: {
             escapeValue: false,
+            format: (value, format) => {
+                switch (format) {
+                    case 'lowercase':
+                        return value.toLowerCase();
+                    default:
+                        return value;
+                }
+            },
         },
         returnNull: false,
         debug: process.env.NODE_ENV !== 'production',