How to add spelling language in flatpak version

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1

Hello,

I used Lokalize v.23.08.5 on my Kubuntu 24.04 (via apt) to update the .po files for Grisbi (personal finance manager).

I tried the version on GitHub (too complicated to implement), and the ppa version cannot be installed (dependency issues).

I found an update for Lokalize v25.08.2 on Flathub.

In v.25.08.2, the spell checker ONLY supports English and French, whereas v23.08.5 also supports German, Danish, Spanish and many others.

Is it possible to add them and how can this be done?

Thanks