refactor and simplify things

src/components/embed-field.tsx

@@ -0,0 +1,17 @@
+import React from "react"
+
+export type EmbedFieldProps = {
+  name: string
+  children: React.ReactNode
+  inline?: boolean
+}
+
+export function EmbedField(props: EmbedFieldProps) {
+  return (
+    <reacord-element
+      createNode={() => ({ ...props, type: "embedField", children: [] })}
+    >
+      {props.children}
+    </reacord-element>
+  )
+}