FIX: Template file when not custom script is specified (#4826)

Author: Samuelopez-ansys

pyaedt/workflows/installer/extension_manager.py

@@ -294,6 +294,9 @@ def button_is_clicked(
             if not file:
                 file = os.path.join(os.path.dirname(pyaedt.workflows.templates.__file__), "extension_template.py")
             if os.path.isfile(executable_interpreter):
+                template_file = "run_pyaedt_toolkit_script"
+                if selected_toolkit_info:
+                    template_file = selected_toolkit_info.get("template")
                 add_script_to_menu(
                     name=name,
                     script_file=file,
@@ -302,7 +305,7 @@ def button_is_clicked(
                     executable_interpreter=executable_interpreter,
                     personal_lib=desktop.personallib,
                     aedt_version=desktop.aedt_version_id,
-                    template_file=selected_toolkit_info.get("template"),
+                    template_file=template_file,
                 )
                 desktop.logger.info("{} installed".format(name))
             else: