refactor: replace comfy built-in text widget with custome autocomplete text widget for better event handler binding

- Change `STRING` input type to `AUTOCOMPLETE_TEXT_LORAS` in LoraManagerLoader, LoraStacker, and WanVideoLoraSelectLM nodes for LoRA syntax input
- Change `STRING` input type to `AUTOCOMPLETE_TEXT_EMBEDDINGS` in PromptLoraManager node for prompt input
- Remove manual multiline, autocomplete, and dynamicPrompts configurations in favor of built-in autocomplete types
- Update placeholder text for consistency across nodes
- Remove unused `setupInputWidgetWithAutocomplete` mock from frontend tests
- Add Vue app cleanup logic to prevent memory leaks in widget management

py/nodes/lora_stacker.py

@@ -14,12 +14,9 @@ class LoraStacker:
     def INPUT_TYPES(cls):
         return {
             "required": {
-                "text": ("STRING", {
-                    "multiline": True, 
-                    "pysssss.autocomplete": False, 
-                    "dynamicPrompts": True, 
+                "text": ("AUTOCOMPLETE_TEXT_LORAS", {
+                    "placeholder": "Type LoRA syntax...",
                     "tooltip": "Format: <lora:lora_name:strength> separated by spaces or punctuation",
-                    "placeholder": "LoRA syntax input: <lora:name:strength>"
                 }),
             },
             "optional": FlexibleOptionalInputType(any_type),