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

vue-widgets/vite.config.mts

@@ -22,7 +22,8 @@ export default defineConfig({
         rollupOptions: {
             external: [
                 '../../../scripts/app.js',
-                '../loras_widget.js'
+                '../loras_widget.js',
+                '../autocomplete.js'
             ],
             output: {
                 dir: '../web/comfyui/vue-widgets',