Allow configure default country code in element welcome page.

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

@@ -191,6 +191,9 @@ matrix_client_element_self_check_validate_certificates: true
 # don't show the registration button on welcome page
 matrix_client_element_registration_enabled: false
 
+# Default country code on welcome page when login by phone number
+matrix_client_element_default_country_code: "GB"
+
 # Controls whether presence will be enabled
 matrix_client_element_enable_presence_by_hs_url: ~
 

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

@@ -12,6 +12,7 @@
 		"custom_themes": {{ matrix_client_element_settingDefaults_custom_themes|to_json }}
 	},
 	"default_theme": {{ matrix_client_element_default_theme | string|to_json }},
+	"default_country_code": {{ matrix_client_element_default_country_code | string|to_json }},
 	"permalinkPrefix": {{ matrix_client_element_permalinkPrefix | string|to_json }},
 	"disable_custom_urls": {{ matrix_client_element_disable_custom_urls|to_json }},
 	"disable_guests": {{ matrix_client_element_disable_guests|to_json }},