fix(frontend): リノートの判定が甘いのを修正 (#14396)

* fix(frontend): リノートの判定が甘いのを修正

* fix

* Update Changelog

* fix

* use type assertion

* fix + add comments

* lint

* misskey-jsに移動

* PureRenote -> Renote

* isRenote -> isPureRenote

packages/misskey-js/src/note.ts

@@ -0,0 +1,12 @@
+import type { Note, PureRenote } from './entities.js';
+
+export function isPureRenote(note: Note): note is PureRenote {
+	return (
+		note.renote != null &&
+		note.reply == null &&
+		note.text == null &&
+		note.cw == null &&
+		(note.fileIds == null || note.fileIds.length === 0) &&
+		note.poll == null
+	);
+}