refactor: use links only from the root config

[meskill]

Summary:
Briefly describe the changes made in this PR.

Issue Reference(s):
Phase 1 of #3164

Build & Testing:

• I ran cargo test successfully.
• I have run ./lint.sh --mode=fix to fix all linting issues raised by ./lint.sh --mode=check.

Checklist:

• I have added relevant unit & integration tests.
• I have updated the documentation accordingly.
• I have performed a self-review of my code.
• PR follows the naming convention of <type>(<optional scope>): <title>

[codecov]

Codecov Report

Attention: Patch coverage is 95.74468% with 2 lines in your changes missing coverage. Please review.

Project coverage is 86.65%. Comparing base (61d79d6) to head (f141535).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/core/config/config_module/merge.rs	95.23%	1 Missing ⚠️
src/core/config/reader.rs	96.15%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3190      +/-   ##
==========================================
- Coverage   86.66%   86.65%   -0.02%     
==========================================
  Files         277      277              
  Lines       27761    27769       +8     
==========================================
+ Hits        24059    24063       +4     
- Misses       3702     3706       +4     

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