-added React Context for Lecture component to get the current lecture name
-depending on the current lecture name, the right quiz gets loaded
-quiz questions gets loaded from json files from server
-changed vite.config.ts so that "vite preview" runs on port 5173 (for easiness)
-added React Context for Lecture component to get the current lecture name -depending on the current lecture name, the right quiz gets loaded -quiz questions gets loaded from json files from server -changed vite.config.ts so that "vite preview" runs on port 5173 (for easiness)