Props optional for h

lib/html.ts

@@ -1,6 +1,6 @@
 export function h<Name extends keyof HTMLElementTagNameMap>(
   name: Name,
-  props: Partial<HTMLElementTagNameMap[Name]>,
+  props: Partial<HTMLElementTagNameMap[Name]> = {},
   ...children: (Node | string)[]
 ): HTMLElementTagNameMap[Name] {
   const element = Object.assign(document.createElement(name), props);