Broken UI after search - Search failed - Signal is aborted without reason

### Steps to reproduce

1. I did a search, which showed some hits
2. I think I first scrolled in the room where it had found hits, the clicked on one of the findings.
3. I see dialog window "Search failed - Signal is aborted without reason", which is stuck on top - cannot be dismissed by clicking on "OK" or the "X" to close.
4. I can click in the application menu, and some items respond but it is mostly broken, and the "Search failed..." is stuck on top

### Outcome

### Operating system

macOS

### Application version

Element version: 1.11.92

### How did you install the app?

_No response_

### Homeserver

matrix.org

### Will you send logs?

Yes

Start by reproducing the reported search flow on macOS: perform a search, scroll the room with results, and open a finding. Confirm whether the error dialog remains undismissable and leaves the application mostly unusable; a fix is complete when the dialog can be dismissed and the UI remains responsive.

Written by the indexing model from the issue text.