feat: make "options" optional

Signed-off-by: Chang Wang <[email protected]>

Author: cheapsteak

wasm/src/lib.rs

@@ -80,7 +80,11 @@ pub fn inline(
     html: &str,
     options: JsValue,
 ) -> Result<String, JsValue> {
-    let options: WasmOptions = options.into_serde().map_err(SerdeError)?;
+    let options: Options = if !options.is_undefined() {
+        options.into_serde().map_err(SerdeError)?
+    } else {
+        Options::default()
+    };
     let inliner = rust_inline::CSSInliner::new(options.try_into()?);
     Ok(inliner.inline(html).map_err(InlineErrorWrapper)?)
 }