Make EMailer util dynamic

include/enotify.php

@@ -610,7 +610,7 @@ function notification($params)
 		]);
 
 		// use the Emailer class to send the message
-		return Emailer::send([
+		return DI::emailer()->send([
 			'uid' => $params['uid'],
 			'fromName' => $sender_name,
 			'fromEmail' => $sender_email,

mod/item.php

@@ -816,7 +816,7 @@ function item_post(App $a) {
 					'htmlVersion' => $message,
 					'textVersion' => HTML::toPlaintext($html.$disclaimer)
 				];
-				Emailer::send($params);
+				DI::emailer()->send($params);
 			}
 		}
 	}

src/DI.php

@@ -363,4 +363,12 @@ abstract class DI
 	{
 		return self::$dice->create(Util\Profiler::class);
 	}
+
+	/**
+	 * @return Util\Emailer
+	 */
+	public static function emailer()
+	{
+		return self::$dice->create(Util\Emailer::class);
+	}
 }

src/Util/Emailer.php

@@ -31,7 +31,7 @@ class Emailer
 	 * @return bool
 	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 */
-	public static function send(array $params)
+	public function send(array $params)
 	{
 		$params['sent'] = false;