[5.3] Installation missing string (#45520)

Author: brianteeman

installation/language/en-GB/joomla.ini

@@ -222,6 +222,7 @@ INSTL_ZIP_SUPPORT_AVAILABLE="Native ZIP support"
 
 ; Global strings
 JADMINISTRATOR="Administrator"
+JCLOSE="Close"
 JEMAIL="Email"
 JERROR="Error"
 JERROR_LAYOUT_ERROR_HAS_OCCURRED_WHILE_PROCESSING_YOUR_REQUEST="An error has occurred while processing your request."