chore: Translate pressbooks-network-catalog.pot in tr_TR

86% of minimum 25% translated source file: 'pressbooks-network-catalog.pot'
on 'tr_TR'.

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

languages/pressbooks-network-catalog-tr_TR.po

@@ -82,7 +82,7 @@ msgstr ""
 
 #: resources/views/catalog.blade.php:42
 msgid "No books have been added to the catalog yet."
-msgstr ""
+msgstr "Henüz kataloğa kitap eklenmemiş."
 
 #: resources/views/components/pagination.blade.php:5
 msgid "%s pagination"