GPX export button is missing and Update upload interface

[BDVGitHub]

When uploading I would like to see the progress of sending the pictures.
Now I see in step "Envoi en cours" when i upload photos a circle is spinning.
I would like to see how many photos have already been uploaded, so 1/299, 2/299, 3/299, ...
This gives you a better sense of how long it will take for all the photos to be uploaded and whether the photos are actually uploading. This can be especially useful if you want to upload many photos at once

Would it also be possible to add a button to download the trajectory of a photo series as a gpx file?

The modified upload screen below is based on @overflorian #76
The color of the icon is not correct yet, I have not found how to do this. I couldn't do the centering of the text as I don't have the original copy to edit

Icons

https://fonts.google.com/icons?selected=Material+Icons:file_download:&icon.query=upload&icon.size=24&icon.color=%232a4252

[overflorian]

Very good suggestion.
I believe that would make the job, isn't it?

[overflorian]

This issue is linked with #119

[overflorian]

Would it also be possible to add a button to download the trajectory of a photo series as a gpx file?

The mobile app will remain focus on uploading efficiently pictures for now.
Correct me if I am wrong but you would like this GPX file to be able to display it in a map app (such as OSMand) to be able to plan your next collection session?

I have this need too. Nevertheless, we decided not to implement this on the website neither on the mobile app. I understand that it could be frustrating not to have access to advanced tools for power-users, but I also believe that dedicated tools should be developed for such advanced uses.

[BDVGitHub]

The reason why I would find a gpx export useful is because some people on OpenStreetMap ask for the GPX file, for example to be able to draw a path on OpenStreetMap because their software with which they perform operations on OSM does not yet support Panoramax.