Formatted text is pasted inside a collapsible block instead of the title

### Description When attempting to paste formatted text into a title of a collapsible block, the text is inserted inside the body of the block rather than the title, even when using `Ctrl+Shift+V` <img width="1105" height="687" alt="Image" src="https://github.com/user-attachments/assets/54263eb0-2421-431e-a2c9-3fc6d94cb1c9" /> ### TriliumNext Version 0.104.1 (database: 240, sync protocol: 39) Build: 17 Aug 2026, 04:43:31, revision: e119dcf ### What operating system are you using? Windows ### What is your setup? Local (no sync) ### Operating System Version Windows 11 ### Error logs _No response_