support wireless link deletion during runtime

daemon/core/gui/nodeutils.py

@@ -90,6 +90,10 @@ class NodeUtils:
     def is_rj45_node(cls, node_type: NodeType) -> bool:
         return node_type in cls.RJ45_NODES
 
+    @classmethod
+    def is_mdr_node(cls, node_type: NodeType, model: str) -> bool:
+        return cls.is_container_node(node_type) and model == "mdr"
+
     @classmethod
     def node_icon(
         cls,