.desktop Exec wrong

[Spixmaster]

In the file data/de.schmidhuberj.tubefeeder.desktop, the entry Exec=/app/bin/tubefeeder is wrong. It should be Exec=/usr/bin/tubefeeder

[Schmiddiii]

The exec path you mentioned is still an artifact from the pre-meson days. Furthermore, /usr/bin is also not quite correct as this may depend on the distribution (e.g. Flatpak has /app/bin as previously), instead the file should be configured by meson.

I currently don't have time to fix this though. But thanks anyway for letting me know.