Update extending/index.po

Co-authored-by: Theofanis Petkos <thepetk@gmail.com>

Author: alextzioras

extending/index.po

@@ -11,7 +11,7 @@ msgstr ""
 "POT-Creation-Date: 2025-05-10 10:19+0300\n"
 "PO-Revision-Date: 2025-05-21 21:30+0300\n"
 "Last-Translator: ALEXANDROS TZIORAS alextzioras23@gmail.com\n"
-"Language-Team: Language-Team: PyGreece <organizers@pygreece.org>\n"
+"Language-Team: PyGreece <organizers@pygreece.org>\n"
 "Language: \n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"