Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  6a264bd5f8732cf226fe8c7809f30cebc2e3b0b0

Hygiene: Page list thumbnails are not icons

Refactor these so they are something different.

Also:
Remove styling relating to page previews
Change-Id: Ieb4e6155374712ec0b0293d99f8e2a9f4723409d