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

80% of minimum 25% translated source file: 'pressbooks-network-catalog.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-network-catalog-zh.po

@@ -185,7 +185,7 @@ msgstr[0] "%d结果"
 
 #: resources/views/partials/search-box.blade.php:18
 msgid "Applied filters"
-msgstr ""
+msgstr "应用过滤条件"
 
 #: resources/views/partials/search-box.blade.php:24
 msgid "Remove %s filter"