Add translation files

- Add glue-link-en_US.pot with initial strings
- Set up language structure for future translations

Author: ajaydsouza

languages/glue-link-en_US.pot

@@ -0,0 +1,13 @@
+msgid ""
+msgstr ""
+"Project-Id-Version: \n"
+"Report-Msgid-Bugs-To: \n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"POT-Creation-Date: 2026-01-08T15:30:11+00:00\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"X-Generator: WP-CLI 2.12.0\n"
+"X-Domain: glue-link\n"