refactor(component): extract import/export manager

[ngjaying]

No description provided.

[codecov]

Codecov Report

Attention: 375 lines in your changes are missing coverage. Please review.

Comparison is base (1a6fdf5) 62.96% compared to head (fb8a403) 62.66%.

Files	Patch %	Lines
internal/server/import_export.go	38.99%	281 Missing and 21 partials ⚠️
internal/server/schema_init.go	0.00%	13 Missing ⚠️
internal/server/plugin_init.go	0.00%	12 Missing ⚠️
internal/server/service_init.go	0.00%	12 Missing ⚠️
internal/server/portable_init.go	0.00%	11 Missing ⚠️
internal/server/rule_migration.go	0.00%	10 Missing ⚠️
internal/schema/registry.go	0.00%	8 Missing ⚠️
internal/plugin/native/manager.go	0.00%	5 Missing ⚠️
internal/server/server.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2551      +/-   ##
==========================================
- Coverage   62.96%   62.66%   -0.30%     
==========================================
  Files         308      309       +1     
  Lines       36877    36943      +66     
==========================================
- Hits        23217    23148      -69     
- Misses      11540    11673     +133     
- Partials     2120     2122       +2     

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