refactor(instance_server): use instance_block helpers

[Codelax]

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 86.00000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 71.06%. Comparing base (fe86049) to head (1021059).
Report is 106 commits behind head on master.

Files	Patch %	Lines
internal/types/map.go	0.00%	6 Missing ⚠️
internal/services/instance/helpers_instance.go	96.55%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2636      +/-   ##
==========================================
- Coverage   71.43%   71.06%   -0.37%     
==========================================
  Files         277      333      +56     
  Lines       35875    33370    -2505     
==========================================
- Hits        25628    23716    -1912     
+ Misses       8028     7342     -686     
- Partials     2219     2312      +93     

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