Allow copy pasting inside of wysiwyg element (#651)

We did some hackery to prevent copy pasting when we didn't support multilines. But we do now so we can remove it.

Interestingly, newlines are actually <br /> elements. So we need to tweak the isInputLike logic a bit

src/utils.ts

@@ -31,6 +31,7 @@ export function isInputLike(
   | HTMLDivElement {
   return (
     (target instanceof HTMLElement && target.dataset.type === "wysiwyg") ||
+    target instanceof HTMLBRElement || // newline in wysiwyg
     target instanceof HTMLInputElement ||
     target instanceof HTMLTextAreaElement ||
     target instanceof HTMLSelectElement