Refactor ComfyUI: Remove legacy tags widget and related dynamic imports

- Deleted the legacy tags widget implementation from legacy_tags_widget.js.
- Updated trigger_word_toggle.js to directly import the new tags widget.
- Removed unused dynamic import functions and version checks from utils.js.
- Cleaned up lora_loader.js and lora_stacker.js by removing redundant node registration code.

web/comfyui/lora_loader.js

@@ -176,32 +176,6 @@ app.registerExtension({
           inputWidget,
           originalCallback
         );
-
-        // Register this node with the backend
-        this.registerNode = async () => {
-          try {
-            await fetch("/api/register-node", {
-              method: "POST",
-              headers: {
-                "Content-Type": "application/json",
-              },
-              body: JSON.stringify({
-                node_id: this.id,
-                bgcolor: this.bgcolor,
-                title: this.title,
-                graph_id: this.graph.id,
-              }),
-            });
-          } catch (error) {
-            console.warn("Failed to register node:", error);
-          }
-        };
-
-        // Ensure the node is registered after creation
-        // Call registration
-        // setTimeout(() => {
-        //   this.registerNode();
-        // }, 0);
       });
     }
   },