feat(editor): add favicon, title, description support for footnote url reference (#11924)

Closes: [BS-3272](https://linear.app/affine-design/issue/BS-3272/footnote-适配-exa-api-返回结果)

## What's Changed

Add link preview data support (favicon, title, description) for URL references in footnotes:
- Store and display URL preview data in footnotes
- Add encoding/decoding support for favicon URLs
- Optimize link preview by using existing preview data when available

blocksuite/affine/model/src/consts/doc.ts

@@ -65,6 +65,9 @@ export type ReferenceInfo = z.infer<typeof ReferenceInfoSchema>;
  * 3. url: string - the url of the reference
  * 4. fileName: string - the name of the attachment
  * 5. fileType: string - the type of the attachment
+ * 6. favicon: string - the favicon of the url reference
+ * 7. title: string - the title of the url reference
+ * 8. description: string - the description of the url reference
  */
 export const FootNoteReferenceParamsSchema = z.object({
   type: z.enum(FootNoteReferenceTypes),
@@ -73,6 +76,9 @@ export const FootNoteReferenceParamsSchema = z.object({
   fileName: z.string().optional(),
   fileType: z.string().optional(),
   url: z.string().optional(),
+  favicon: z.string().optional(),
+  title: z.string().optional(),
+  description: z.string().optional(),
 });
 
 export type FootNoteReferenceParams = z.infer<