How to move the app back to the internal storage?

[mbridon]

The in-app FAQ says if I can't see the app widgets it's because I moved the app to the SD card? 😕

I don't think I ever did that, I merely installed this app from fdroid 🤷

I suppose I need the app widget to be able to see the remainder of timers while the app isn't focused, like when I play a video or something like that, as the Samsung default Clock apps does...

So how can I move the app back to the internal storage? 🤔

The FAQ says to do that "via the device settings", but I can't find any option to do that...