拆分图片画布生成对象注册表

新增画布生成对象 dialog 管理 hook
补充生成对象注册表 hook 单测
调整 Lovart 式画布背景色板弹层
更新图片画布前端拆分跟踪文档

src/components/image-editor/ImageCanvasEditorView.test.tsx

@@ -1991,7 +1991,7 @@ describe('ImageCanvasEditorView', () => {
     const settingsPanel = screen.getByRole('dialog', {
       name: '画布背景设置',
     });
-    expect(within(settingsPanel).getByText('画布背景')).toBeTruthy();
+    expect(within(settingsPanel).getByText('画布背景色')).toBeTruthy();
 
     fireEvent.click(
       within(settingsPanel).getByRole('button', { name: '暖灰' }),