Revert "Rename OhShitStore™ to powerstore"

[Kubuxu]

Reverts #740

The data in the OhShitStore™ looks correct on Archioz.

[codecov]

Codecov Report

Attention: Patch coverage is 57.14286% with 3 lines in your changes missing coverage. Please review.

Project coverage is 74.96%. Comparing base (9ab46d6) to head (85d5922).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
f3.go	33.33%	2 Missing ⚠️
internal/powerstore/powerstore.go	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #742      +/-   ##
==========================================
- Coverage   75.06%   74.96%   -0.11%     
==========================================
  Files          70       70              
  Lines        6939     6939              
==========================================
- Hits         5209     5202       -7     
- Misses       1317     1323       +6     
- Partials      413      414       +1     

Files with missing lines	Coverage Δ
internal/powerstore/powerstore.go	61.86% <75.00%> (ø)
f3.go	61.53% <33.33%> (-1.47%)	⬇️

... and 2 files with indirect coverage changes