[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/components/load3d/controls/viewer/ViewerModelControls.vue

@@ -1,7 +1,7 @@
 <template>
   <div class="space-y-4">
     <div>
-      <label>{{ t('load3d.upDirection') }}</label>
+      <label>{{ $t('load3d.upDirection') }}</label>
       <Select
         v-model="upDirection"
         :options="upDirectionOptions"
@@ -11,7 +11,7 @@
     </div>
 
     <div>
-      <label>{{ t('load3d.materialMode') }}</label>
+      <label>{{ $t('load3d.materialMode') }}</label>
       <Select
         v-model="materialMode"
         :options="materialModeOptions"