refactor(sonar): adjust reliability and maintainability findings

[svierk]

No description provided.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
96.7% Coverage on New Code
3.9% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

❌ Patch coverage is 96.42857% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 96.06%. Comparing base (6287557) to head (21ad04e).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/app/services/db.service.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #132      +/-   ##
==========================================
+ Coverage   94.02%   96.06%   +2.03%     
==========================================
  Files          37       37              
  Lines        1121     1092      -29     
  Branches      176      162      -14     
==========================================
- Hits         1054     1049       -5     
  Misses         26       26              
+ Partials       41       17      -24     

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