Text overlap in translation popup when translating selected text

When using the built-in translation feature for a selected text fragment, the translation results are rendered directly on top of the original text within the popup, making both strings unreadable.

To Reproduce
Open any e-book in Foliate.
Select a fragment of text (e.g., "started tinkering").
Use the "Translate" function (Google Translate).
Observe the popup window.

Expected behavior
The translation should be displayed clearly below or instead of the original text, without overlapping characters.

Foliate 3.1.1
Ubuntu 24.04
GNOME Shell 46.0
apt