chore(editor): reorg packages (#10702)

blocksuite/affine/blocks/block-image/src/image-proxy-service.ts

@@ -0,0 +1,9 @@
+import { StoreExtension } from '@blocksuite/store';
+
+import { setImageProxyMiddlewareURL } from './adapters/middleware';
+
+export class ImageProxyService extends StoreExtension {
+  static override key = 'image-proxy';
+
+  setImageProxyURL = setImageProxyMiddlewareURL;
+}