Add `verdi computer/code search` to query registries

[GeigerJ2]

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 1.44665% with 545 lines in your changes missing coverage. Please review.

Project coverage is 78.20%. Comparing base (b2a6e21) to head (bae6cf9).

Files with missing lines	Patch %	Lines
src/aiida/cmdline/utils/registry_helpers.py	0.00%	485 Missing :warning:
src/aiida/cmdline/commands/cmd_computer.py	11.77%	60 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6925      +/-   ##
==========================================
- Coverage   79.17%   78.20%   -0.97%     
==========================================
  Files         566      567       +1     
  Lines       43461    44012     +551     
==========================================
+ Hits        34408    34416       +8     
- Misses       9053     9596     +543     

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