upgrade UA for youtube at least

safer build following @Guillaume-Levrier's suggestions (close #224)

keep #211 fix but still fixes bad missing /api/ urls

use env var instead

better autonames

add zenodo file

add DOI badge from Zenodo

better handle urls input into the server form: guess automatically /a…

…pi/ variant if regular web url used + try to fix some cases of bad home urls

(closes #210)

use new field save_startpages for crawl started from hybro

css injection does not seem to work when hyphe front is in https, swi…

…tching back to JS removal after timeout instead