v0.25.5

Added

• Navigation: the "More" button now shows the name and icon of the active secondary module instead of the generic label, making it clear which module is open
• Dashboard: first-time onboarding overlay guides new users through the app's three core navigation areas

Changed

• Navigation: renamed "Pinnwand" to "Notizen" for clarity
• Login: submit button shows a spinner during authentication; empty fields are highlighted individually with red borders instead of a single generic error message

Fixed

• Modal: closing a modal when the form has unsaved changes no longer double-fires the guard due to a missing _isClosing flag; the close button now uses an arrow-function listener to avoid stale closure issues