Fix lint issues in lib/ dir.

[plural]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 97.48954% with 6 lines in your changes missing coverage. Please review.

Project coverage is 98.16%. Comparing base (3f2ae25) to head (cc78c9c).

Files	Patch %	Lines
lib/search_query_builder.rb	92.30%	5 Missing ⚠️
lib/deck_validation.rb	95.45%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #294      +/-   ##
==========================================
+ Coverage   97.44%   98.16%   +0.72%     
==========================================
  Files          74       74              
  Lines        1291     1256      -35     
  Branches      200      159      -41     
==========================================
- Hits         1258     1233      -25     
+ Misses         33       23      -10     

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