feat: restore import export plugins

[Yisaer]

No description provided.

[codecov]

Codecov Report

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

Project coverage is 67.71%. Comparing base (c300688) to head (a2e4298).

Files	Patch %	Lines
internal/server/yaml_import_export.go	78.12%	4 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3042      +/-   ##
==========================================
+ Coverage   67.64%   67.71%   +0.07%     
==========================================
  Files         357      357              
  Lines       34952    34984      +32     
==========================================
+ Hits        23640    23687      +47     
+ Misses       9189     9175      -14     
+ Partials     2123     2122       -1     

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[ngjaying]

The v1 import/export also need to restore plugin support