chore: verify user null

Signed-off-by: Crisciany Souza <criscianysilva1997@gmail.com>

Author: Any97Cris

lib/Service/AccountService.php

@@ -233,8 +233,7 @@ public function getConfig(?IUser $user = null): array {
 		$info['hasSignatureFile'] = $this->hasSignatureFile($user);
 		$info['phoneNumber'] = $this->getPhoneNumber($user);
 		$info['isApprover'] = $this->validateHelper->userCanApproveValidationDocuments($user, false);
-		//$info['grid_view'] = $this->appConfig->getValueBool(Application::APP_ID, 'grid_view', false);
-		$info['grid_view'] = $this->config->getUserValue($user->getUID(), Application::APP_ID, 'grid_view', false) === '1';
+		$info['grid_view'] = $this->getUserConfigGridView($user);
 
 		return $info;
 	}
@@ -261,6 +260,14 @@ public function hasSignatureFile(?IUser $user = null): bool {
 		}
 	}
 
+	private function getUserConfigGridView(?IUser $user = null): bool {
+		if (!$user) {
+			return false;
+		}
+
+		return $this->config->getUserValue($user->getUID(), Application::APP_ID, 'grid_view', false) === '1';
+	}
+
 	/**
 	 * Get PDF node by UUID
 	 *