[refactor] refactor load3d (#5765)

Summary

Fully Refactored the Load3D module to improve architecture and
maintainability by consolidating functionality into a
centralized composable pattern and simplifying component structure. and
support VueNodes system

  Changes

- Architecture: Introduced new useLoad3d composable to centralize 3D
loading logic and state
  management
- Component Simplification: Removed redundant components
(Load3DAnimation.vue, Load3DAnimationScene.vue,
  PreviewManager.ts) 
- Support VueNodes
- improve config store
- remove lineart output due Animation doesnot support it, may add it
back later
- remove Preview screen and keep scene in fixed ratio in load3d (not
affect preview3d)
- improve record video feature which will already record video by same
ratio as scene
Need BE change https://github.com/comfyanonymous/ComfyUI/pull/10025


https://github.com/user-attachments/assets/9e038729-84a0-45ad-b0f2-11c57d7e0c9a



┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-5765-refactor-refactor-load3d-2796d73d365081728297cc486e2e9052)
by [Unito](https://www.unito.io)

src/renderer/extensions/vueNodes/widgets/registry/widgetRegistry.ts

@@ -3,6 +3,7 @@
  */
 import type { Component } from 'vue'
 
+import Load3D from '@/components/load3d/Load3D.vue'
 import type { SafeWidgetData } from '@/composables/graph/useGraphNodeManager'
 
 import WidgetAudioUI from '../components/WidgetAudioUI.vue'
@@ -131,7 +132,8 @@ const coreWidgetDefinitions: Array<[string, WidgetDefinition]> = [
       aliases: ['AUDIOUI', 'AUDIO_UI'],
       essential: false
     }
-  ]
+  ],
+  ['load3D', { component: Load3D, aliases: ['LOAD_3D'], essential: false }]
 ]
 
 const getComboWidgetAdditions = (): Map<string, Component> => {