[web] Slight tweak on jQueryUI's colors on links (related to #4564046)
Follow up to commit 16f550b48d57 which was somewhat brutal. This change
only overrides jQueryUI's CSS rules inside tab panes and leaves actual
tab buttons alone.
Essayer le champ de recherche. Essayer des recherches comme "fiche
unmotachercher", ou encore "fiche wikiid index" ou "345".