Problem:
Currently we show "multiple languages" to indicate fallback to mul in different places (e.g. title, search results). This is distracting for users.

Solution:
Hide the fallabck indicator for mul (as we already do for language variants).

Notes:

• e.g. Luca's patch or the via CSS (as we do it for language variants)

.wb-language-fallback-mul {
  display: none;
}

Acceptance criteria:

• Fallback to mul on Test Wikidata does not produce "multiple language" in the title (similar to fallbacks for language variants)

Open questions:

Original:
see T297393#7911472