Add Punjabi translations for tutorial errors and update controlflow

Author: BHUVANSH855

locales/pa-IN/LC_MESSAGES/tutorial/controlflow.po

@@ -11,7 +11,7 @@ msgstr ""
 "PO-Revision-Date: 2026-06-13 15:35+0530\n"
 "Last-Translator: Bhuvansh Kataria <bhuvanshkataria@gmail.com>\n"
 "Language-Team: Punjabi (India)\n"
-"Language: pa_IN\n"
+"Language: pa-IN\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"