Spanish traslation

The spanish traslation of "More sites" is "Más sios" but must be "Más sitios"

Search the translation resources for the Spanish string "Más sios" and inspect the surrounding entries to confirm the relevant "More sites" label. Correct the spelling to "Más sitios" and verify that the Spanish translation contains the corrected text.

索引モデルが issue の本文から書いたものです。