Start on GUI for editing notes

src/calibre/gui2/dialogs/edit_category_notes.py

@@ -0,0 +1,11 @@
+#!/usr/bin/env python
+# License: GPLv3 Copyright: 2023, Kovid Goyal <kovid at kovidgoyal.net>
+
+
+from calibre.gui2.widgets2 import Dialog
+
+
+class EditNoteDialog(Dialog):
+
+    def __init__(self, field, item_id, db, parent=None):
+        self.db = db.new_api