Fix scroll text

Visit: http://localhost:5173/?item=https%3A%2F%2Ftest.roger-dev.sub.uni-goettingen.de%2Ftextapi%2FZ_1815-09-16_k%2FZ_1815-09-16_k_page1%2Flatest%2Fitem.json

• click annotation somewhere down the list -> text should scroll to highlighted