Usability improvement for language & country selectors

[g123k]

Hi everyone,

As I was checking the PR fixing visual inconsistencies in the app settings, I think we should improve selectors for both the language and the country.

Currently, when opening the dialog, the list is always at the top, and we need to scroll to know which country/language is selected.

To improve the UX, we should:

• Scroll to the position where we can see the selected item
• Or move the selected item to the first position

I don't have any strong advice on the solution, but that's a kind of small UX issue, that we can fix easily.

Video

A video of the current issue:

RocketSim_Recording_iPhone_14_Pro_2023-03-31_10.39.36.mp4

[M123-dev]

I'd prefer scrolling the the currently selected lc/cc, breaking order could get confusing

[monsieurtanuki]

For the record with the multilingual image feature I had to add to the language selector "pre-selected languages".
For instance, an image is available in French and Spanish: the language selector displays French as checked, Spanish as checked, and then all the languages in alphabetical order.

[monsieurtanuki]

@g123k Is that OK with you if I finish this one? Again, as a side-effect of multilingual images (where we can have several languages selected) I implemented something for languages; I could code the same thing for country.

[g123k]

Yes, feel free to do so. Having the selected languages at the top seems to be the better way to implement the feature

[monsieurtanuki]

Fixed by #3936.