Random Robotoff insight UX suggestions

[monsieurtanuki]

cf. #3336

• display an error message on the Robotoff page if we cannot download a product and have no fallback - for the moment we have a sort of forever loop (cf. QuestionCard)
• we refresh the product after an answer and before a new question - there's room for optimization there, we could avoid one call (cf. QuestionPage)
• especially in Hunger Games, we could have "instant answers" - a bit like what we do for background tasks, we could not await saving the results (we still would have to download the next product) (cf. Ensure Robotoff questions works offline (and local answers are dropped in the right cases after reconnection) #2457)
• in Robotoff questions there is one (or many) pictures, and if you click on it you go to the picture list page, and then you have to click on "your" picture to go to an "edit picture" page. It should be faster (directly to the single picture page) and with no edit feature. cf. Simplify adding photos by removing 2 of the 4 steps #3332
• Generally speaking, the Robotoff UI could be improved, for instance by improving the initial CircularProgressIndicator (with a "Next question is being loaded..." dialog for instance?)

[Akashsri3bi]

I will see to it

[monsieurtanuki]

Thank you @Akashsri3bi!
Please create an issue for each suggestion that you want to implement.
For the record, none of them has a high priority - it's just things I noticed while coding on Robotoff.

[Akashsri3bi]

Thank you @Akashsri3bi! Please create an issue for each suggestion that you want to implement. For the record, none of them has a high priority - it's just things I noticed while coding on Robotoff.

Sure !