* Add dynamic subpath support for WebUI
- Add SubpathConfig utility for server-side subpath detection
- Configure React Router basename from server config
- Update API base URL handling for subpath compatibility
- Fix asset loading with relative paths
- Add VITE_SUBPATH environment variable for development
- Update locales and manifest paths for subpath support
Closes#174
* Move VITE_SUBPATH interface to vite-env.d.ts
* Ensure production bundle always uses relative base
* 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
* Use alias "@" for imports
* Use alias "@" for imports - Fix imports
* Use alias "@" for imports - Prevent faulty "import/extensions" linting issue
For some reason the rule throws an error for alias imports
* Use alias "@" for imports - Update "no-relative-imports" eslint rule