update template

template/externs/webextension_polyfill/clipboard/Static.hx

@@ -0,0 +1,9 @@
+package webextension_polyfill.clipboard;
+
+typedef Static = {
+	/**
+		Copy an image to the clipboard. The image is re-encoded before it is written to the clipboard. If the image is invalid,
+		the clipboard is not modified.
+	**/
+	function setImageData(imageData:js.lib.ArrayBuffer, imageType:SetImageDataImageTypeEnum):js.lib.Promise<ts.Undefined>;
+};