Build export dialog

[philippotto]

Detailed Description

Currently, clicking on "Download" within the dropdown menu for an open annotation simply outputs a file (either NML or zip) and the user has to figure out how to deal with it. We could build an export modal which (implicitly) explains some stuff and provides options:

• always show export/download modal (or only when there are indeed multiple options? I'd argue for always showing the modal and adding tooltips for disabled stuff)
• modal should provide options/checkboxes, such as:
  • 1. Download Volume as wkw
  • 2. Download Volume as Tiff (if available)
  • 3. Skeleton as NML
  • 5. Other Layers as wkw/tiff
• additionally, available bounding boxes could be selectable to restrict the volume export (skeleton will be untouched; the UI should reflect this)
• link to wk (lib) docs to guide the user for further processing of the exported data

We already have a similar modal for exporting bounding boxes. We could re-use and overhaul that modal so that it can be used from both places.

Context

For (new) users, the question of "how do I get my data?" always comes up sooner or later. Currently, the UI doesn't really provide a big support for answering this. Improving the UX on this matter could go a long way.

• Specific to long-running jobs (set jobsEnabled=true in application.conf)
• Specific to webKnossos.org (set isDemoInstance=true in application.conf)

[philippotto]

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[hotzenklotz]

We already have a similar modal for exporting bounding boxes. We could re-use and overhaul that modal so that it can be used from both places.

Exactly. We might also add a Download option in the Segments Tab. (Perhaps from the overflow menu)