add create user query with exporting data

[Gemui]

Description

Please describe your pull request.

Fixes #17996

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[codecov]

Codecov Report

Attention: Patch coverage is 78.12500% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 56.50%. Comparing base (daa252b) to head (3fc852f).
Report is 1633 commits behind head on master.

Files	Patch %	Lines
libraries/classes/Server/Privileges.php	78.12%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #18550      +/-   ##
============================================
+ Coverage     56.43%   56.50%   +0.06%     
- Complexity    16077    16107      +30     
============================================
  Files           635      638       +3     
  Lines         63479    63548      +69     
============================================
+ Hits          35824    35907      +83     
+ Misses        27655    27641      -14     

Flag	Coverage Δ
dbase-extension	56.50% <78.12%> (+0.06%)	⬆️
recode-extension	56.47% <78.12%> (+0.06%)	⬆️
unit-8.1-ubuntu-latest	56.47% <78.12%> (+0.06%)	⬆️
unit-8.2-ubuntu-latest	56.47% <78.12%> (+0.06%)	⬆️
unit-nightly-ubuntu-latest	56.43% <78.12%> (+0.06%)	⬆️

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[williamdes]

Can this one be rebased, and some screenshots posted ?
I think that could be a nice addition