Hotkeys for E-TEČAJ A1/A2 HR

I enjoy learning Croatian and using the E-TEČAJ platform, so I made this independent extension to make course navigation smoother for everyone taking the courses at a1.ffzg.unizg.hr and a2.ffzg.unizg.hr. Use keyboard shortcuts to move between activities and quiz pages: • Alt+Enter — Next page or activity. Alt+N is an alternative. • Alt+P — Previous page or activity; returns to an attempt when that is the available action. • Alt+R — Re-attempt a quiz, or finish a review when that is the available action. • Alt+F — Focus the first answer field. The extension interface follows Chrome's language in English, Croatian, or Spanish; unsupported languages fall back to English. Quiz pages can also focus the first answer automatically. An optional Croatian typing feature converts familiar key positions to Croatian characters. It is off by default, for learners who prefer not to install a Croatian keyboard layout on their device. This is an independent project, not an official product of the University of Zagreb or FFZG.