Translate strings.xml in it

99% of minimum 70% translated source file: 'strings.xml'
on 'it'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

app/src/main/res/values-it/strings.xml

@@ -119,6 +119,7 @@
     <string name="sort_name">Nome</string>
     <string name="lastModified">Ultima modifica</string>
     <string name="sort_size">Dimensioni</string>
+    <string name="sort_relevance">Rilevanza</string>
     <!--ListMode-->
     <!--Folder-->
     <string name="pick_a_file">Seleziona un file</string>