fix: don't use DI for userManager in mail plugin patch

 class MailPlugin implements ISearchPlugin {

 	protected bool $shareWithGroupOnly;

@@ -41,6 +42,7 @@

 		private KnownUserService $knownUserService,

 		private IUserSession $userSession,

 		private IMailer $mailer,

+		private IUserManager $userManager,

 		private mixed $shareWithGroupOnlyExcludeGroupsList,

 		private int $shareType,

 	) {

@@ -60,6 +61,7 @@

 	 * {@inheritdoc}

 	 */

 	public function search($search, $limit, $offset, ISearchResult $searchResult): bool {

+		$userManager = \OC::$server->get(IUserManager::class);

 		if ($this->shareeEnumerationFullMatch && !$this->shareeEnumerationFullMatchEmail) {

 			return false;

 		}

@@ -211,27 +213,63 @@

 						if ($exactEmailMatch) {

 							$searchResult->markExactIdMatch($emailType);

-								'shareWith' => $emailAddress,

-							],

-						];

+						$isUserinInstance = $this->userManager->get($emailAddress);

+						$isUserinInstance = $userManager->get($emailAddress);

+						if ($isUserinInstance === null) {

+							// /e/ user is not in ecloud

+							$result['exact'][] = [

-								'shareWith' => $emailAddress,

-							],

-						];

+						$isUserinInstance = $this->userManager->get($emailAddress);

+						$isUserinInstance = $userManager->get($emailAddress);

+						if ($isUserinInstance === null) {

+							// /e/ user is not in ecloud

+							$result['wide'][] = [