Use the integer REST API type instead of number, to resolve overly st…

…rict user_id capability checks (#560)

* Fixing bug where Super Admins cannot setup Time Based One-Time Password as first Two Factor option on WP VIP
* refactor(Two_Factor_Backup_Codes): setting user_id type to integer instead of number to make consistent with Two_Factor_Totp

Fixes #559
Fixes #557

providers/class-two-factor-backup-codes.php

@@ -61,7 +61,7 @@ public function register_rest_routes() {
 				'args'                => array(
 					'user_id' => array(
 						'required' => true,
-						'type'     => 'number',
+						'type'     => 'integer',
 					),
 					'enable_provider' => array(
 						'required' => false,

providers/class-two-factor-totp.php

@@ -70,7 +70,7 @@ public function register_rest_routes() {
 					'args'                => array(
 						'user_id' => array(
 							'required' => true,
-							'type'     => 'number',
+							'type'     => 'integer',
 						),
 					),
 				),
@@ -83,7 +83,7 @@ public function register_rest_routes() {
 					'args'                => array(
 						'user_id' => array(
 							'required' => true,
-							'type'     => 'number',
+							'type'     => 'integer',
 						),
 						'key'     => array(
 							'type'              => 'string',
@@ -223,7 +223,7 @@ public static function generate_qr_code_url( $user, $secret_key ) {
 
 		/**
 		 * Filter the Label for the TOTP.
-		 * 
+		 *
 		 * Must follow the TOTP format for a "label". Do not URL Encode.
 		 *
 		 * @see https://github.com/google/google-authenticator/wiki/Key-Uri-Format#label