fix: add type declaration of ?renderer&doctype modules

Author: uenoB

packages/vite-plugin-minissg/client.d.ts

@@ -4,6 +4,12 @@ declare module '*?renderer' {
   export default render
 }
 
+declare module '*?renderer&doctype' {
+  type Content = NonNullable<import('./dist/index').Content>
+  const render: (component: any) => Promise<Blob>
+  export default render
+}
+
 declare module '*?render' {
   const content: PromiseLike<import('./dist/index').Content>
   export default content