add element web mobile guide app variant config option

roles/custom/matrix-client-element/defaults/main.yml

@@ -186,6 +186,7 @@ matrix_client_element_integrations_rest_url: "https://scalar.vector.im/api"
 matrix_client_element_integrations_widgets_urls: ["https://scalar.vector.im/api"]
 matrix_client_element_integrations_jitsi_widget_url: "https://scalar.vector.im/api/widgets/jitsi.html"
 matrix_client_element_permalink_prefix: "https://matrix.to"  # noqa var-naming
+matrix_client_element_mobile_guide_app_variant: "element"
 matrix_client_element_bug_report_endpoint_url: "https://element.io/bugreports/submit"
 matrix_client_element_show_lab_settings: true  # noqa var-naming
 # Element public room directory server(s)

roles/custom/matrix-client-element/templates/config.json.j2

@@ -11,6 +11,7 @@
 	"setting_defaults": {
 		"custom_themes": {{ matrix_client_element_setting_defaults_custom_themes | to_json }}
 	},
+	"mobile_guide_app_variant": {{ matrix_client_element_mobile_guide_app_variant | string | to_json }},
 	"default_theme": {{ matrix_client_element_default_theme | string | to_json }},
 	"default_country_code": {{ matrix_client_element_default_country_code | string | to_json }},
 	"permalink_prefix": {{ matrix_client_element_permalink_prefix | string | to_json }},