enhance(client): MFMのx3, x4が含まれていたらノートをたたむようにした (#10012)

packages/frontend/src/components/MkNote.vue

@@ -195,6 +195,8 @@ const isMyRenote = $i && ($i.id === note.userId);
 const showContent = ref(false);
 const urls = appearNote.text ? extractUrlFromMfm(mfm.parse(appearNote.text)) : null;
 const isLong = (appearNote.cw == null && appearNote.text != null && (
+	(appearNote.text.includes('$[x3')) ||
+	(appearNote.text.includes('$[x4')) ||
 	(appearNote.text.split('\n').length > 9) ||
 	(appearNote.text.length > 500) ||
 	(appearNote.files.length >= 5) ||