Update the import/export documentation

[lampajr]

Fixes Issue

Fixes #2263

Changes proposed

• Improve and fix the existing export/import documentation

Check List (Check all the applicable boxes)

• My code follows the code style of this project.
• My change requires changes to the documentation.
• I have updated the documentation accordingly.
• All new and existing tests passed.

[lampajr]

You can check the rendered version here https://github.com/Hyperfoil/Horreum/blob/d522a71d4b8f4b3594dbcb996bb3c1042cdf8ed3/docs/site/content/en/docs/Tasks/import-export/index.md

[stalep]

LGTM, one comment I have is that since we now have eg importSchema/updateSchema methods on the backend, it might be good to have separate UI buttons for import and update as well?

[lampajr]

LGTM, one comment I have is that since we now have eg importSchema/updateSchema methods on the backend, it might be good to have separate UI buttons for import and update as well?

Yeah I think it could be a good improvement as well, what do you think if I create a separate issue for that?

[stalep]

LGTM, one comment I have is that since we now have eg importSchema/updateSchema methods on the backend, it might be good to have separate UI buttons for import and update as well?

Yeah I think it could be a good improvement as well, what do you think if I create a separate issue for that?

yes, sounds good!