[Backport 14505 to 5.0.x]Xml upload download improvements (#14505)

[sijandh35]

(cherry picked from commit cf5922a)

Backport #14505

Checklist

Reviewing is a process done by project maintainers, mostly on a volunteer basis. We try to keep the overhead as small as possible and appreciate if you help us to do so by completing the following items. Feel free to ask in a comment if you have troubles with any of them.

For all pull requests:

• Confirm you have read the contribution guidelines
• You have sent a Contribution Licence Agreement (CLA) as necessary (not required for small changes, e.g., fixing typos in the documentation)
• Make sure the first PR targets the master branch, eventual backports will be managed later. This can be ignored if the PR is fixing an issue that only happens in a specific branch, but not in newer ones.

The following are required only for core and extension modules (they are welcomed, but not required, for contrib modules):

• There is a ticket in https://github.com/GeoNode/geonode/issues describing the issue/improvement/feature (a notable exemption is, changes not visible to end-users)
• The issue connected to the PR must have Labels and Milestone assigned
• PR for bug fixes and small new features are presented as a single commit
• PR title must be in the form "[Fixes #<issue_number>] Title of the PR"
• New unit tests have been added covering the changes, unless there is an explanation on why the tests are not necessary/implemented

Submitting the PR does not require you to check all items, but by the time it gets merged, they should be either satisfied or inapplicable.

[codecov]

Codecov Report

❌ Patch coverage is 73.13433% with 36 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (5.0.x@8946975). Learn more about missing BASE report.

Additional details and impacted files

@@           Coverage Diff            @@
##             5.0.x   #14514   +/-   ##
========================================
  Coverage         ?   68.04%           
========================================
  Files            ?      945           
  Lines            ?    57178           
  Branches         ?     7772           
========================================
  Hits             ?    38904           
  Misses           ?    16633           
  Partials         ?     1641           

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