Allow configuring image downloads directory, save without file picker. #382
Description
Describe the feature
An option to configure the default downloads directory and saving the image there without ever opening the file picker.
Additional context
I've been trying to use the Flatpak on Linux mobile, which is working good. A big usability problem is how the download feature works there. The filename does not get set by default, and the directory the file picker opens is the users $HOME. This means having to navigate to the directory you want to save the image, and setting your own filename (and guessing the extension). That's not very friendly UX, especially on mobile.
What would solve this is an option to manually select a default directory, and an option for skipping the file picker entirely. On the Flatpak, this will require tweaking sandboxing permissions to allow writes to the target directory. On Android, this should be possible with SAF by requesting access to a specific directory, then writing to there.