BUG: Aleph breaks "Copy to clipboard" functionality

[sjinks]

Describe the bug
The wrong text is copied when I copy a selection to the clipboard. This happens after the pop-up with the transliterated text appears.

To Reproduce
https://github.com/user-attachments/assets/45a3ecaa-c4fa-42f3-a234-35fe2409c6d3

00:01: I hover the subject of the email; the pop-up with the transliterated subject appears
00:03: I click the subject, and the email opens
00:04: I select a text in the email and copy it to the clipboard
00:06: I paste the copied text into another program
00:06: The transliterated subject gets pasted instead of the selected text

Expected behavior
When I hit Ctrl-C, I expect the selected text to get copied into the clipboard.

Aleph version
4.1.1.

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
I blame it on the Transliterate component; if it gets destroyed before the onClose event fires, the copyText event handler is never removed.