edfu: use a hidden search field for szene_id queries

https://github.com/subugoe/typo3-find/issues/57
edfu: move photo display to its own Parial
edfu: update fotorama (4.3.3 + patches)
edfu: update CSS for new fotorama
edfu: automatically show the first existing image in fotorama

instead of potentially showing a blank/nonexistant one when it comes first
edfu: improve legibility of Photos partial
edfu: add comments to JS initialise() function
edfu: automatically show details for the first scene on the map

https://github.com/subugoe/typo3-find/issues/46
edfu: move map detail view downwards
use lowercase for autocomplete

(this still does not seem to be the best approach)
edfu: update fotorama & the code using it

use the new startindex feature of fotorama and drop the custom patch to the script