Refactor: log token replacement errors at TRACE instead of WARN

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 42.85714% with 4 lines in your changes missing coverage. Please review.

Project coverage is 93.07%. Comparing base (72b1757) to head (8f97570).

Files	Patch %	Lines
src/modules/candidateGenerator.ts	42.85%	4 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1159 +/- ## ========================================== - Coverage 93.11% 93.07% -0.05% ========================================== Files 102 102 Lines 6376 6381 +5 Branches 1410 1517 +107 ========================================== + Hits 5937 5939 +2 + Misses 438 419 -19 - Partials 1 23 +22 ```

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:test_tube: Branch testing instructions

This pull request can be tested locally with the following command:

npm exec --yes -- "github:emmercm/igir#emmercm/quiet-token-errors" [commands..] [options]

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