fix(editor): Decrease notification max-height (#13858)

Author: mutdmour

packages/frontend/editor-ui/src/n8n-theme.scss

@@ -179,7 +179,7 @@
 .el-notification__content {
 	text-align: left;
 	word-break: break-word;
-	max-height: 60vh;
+	max-height: 30vh;
 	overflow-y: auto;
 }