[css] Fix position of hidden locales message in project view
[css] Fix position of hidden locales message in project view

flodolo/webdashboard,mozilla-l10n/webdashboard,flodolo/webdashboard,mozilla-l10n/webdashboard,flodolo/webdashboard,pascalchevrel/webdashboard,pascalchevrel/webdashboard,mozilla-l10n/webdashboard