BibDocFile: escape file URLs in /files tab
BibDocFile: escape file URLs in /files tab

* Escapes file URLs in /files tab.  (closes #2067)

Signed-off-by: Ludmila Marian <e82cd4fb30962648dc4a4769a1bcc5e649b71d6b@gmail.com>
Co-authored-by: Jerome Caffaro <48b2bca20d17f7e0da978ba8575800a8c4a84744@cern.ch>
Tested-by: Tibor Simko <c7116e45300b163846dc01f3ed02116e3f8ef7a5@cern.ch>

tiborsimko/invenio,tiborsimko/invenio,inveniosoftware/invenio,inveniosoftware/invenio