chore: Translate pressbooks-multi-institution.pot in zh

37% of minimum 25% translated source file: 'pressbooks-multi-institution.pot'
on 'zh'.

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

languages/pressbooks-multi-institution-zh.po

@@ -175,7 +175,7 @@ msgstr "%s的书籍列表"
 
 #: src/Views/BookList.php:65
 msgid "%s's Book List"
-msgstr ""
+msgstr "%s的书籍列表"
 
 #: src/Views/BookList.php:69
 msgid "There are %d books owned by %s. They use %s of storage."