CMR-9776: Resolve linter errors & warnings in common-app-lib; add linting config

[zimzoom]

Overview

What is the feature/fix?

Fix clj-kondo errors and warnings on common-app-lib.

Also added .clj-kondo to codebase, including config file and imported config from clj-rewrite.

What is the Solution?

See above, followed clj-kondo docs. See comments in config.edn file.

What areas of the application does this impact?

Quality control

Checklist

• [x ] I have updated/added unit and integration tests that prove my fix is effective or that my feature works
• [x ] New and existing unit and int tests pass locally and remotely with my changes
• [x ] I have removed unnecessary/dead code and imports in files I have changed
• [x ] I have performed a self-review of my own code
• [x ] I have commented my code, particularly in hard-to-understand areas
• [x ] I have made corresponding changes to the documentation
• [x ] My changes generate no new warnings

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 57.14286% with 21 lines in your changes are missing coverage. Please review.

Project coverage is 57.80%. Comparing base (289c472) to head (3621d47).

Files	Patch %	Lines
common-app-lib/src/cmr/common_app/api/routes.clj	0.00%	8 Missing :warning:
...-control-app/src/cmr/access_control/api/routes.clj	0.00%	3 Missing :warning:
.../common_app/api/request_context_user_augmenter.clj	0.00%	3 Missing :warning:
acl-lib/src/cmr/acl/acl_fetcher.clj	50.00%	1 Missing :warning:
common-app-lib/src/cmr/common_app/api/health.clj	0.00%	1 Missing :warning:
.../collections_for_gran_acls_by_concept_id_cache.clj	0.00%	1 Missing :warning:
.../src/cmr/common_app/data/humanizer_alias_cache.clj	0.00%	1 Missing :warning:
common-app-lib/src/cmr/common_app/humanizer.clj	91.66%	0 Missing and 1 partial :warning:
...c/cmr/elastic_utils/search/es_index_name_cache.clj	0.00%	1 Missing :warning:
...-lib/src/cmr/umm_spec/umm_to_xml_mappings/dif9.clj	0.00%	0 Missing and 1 partial :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2102      +/-   ##
==========================================
- Coverage   57.81%   57.80%   -0.01%     
==========================================
  Files        1044     1044              
  Lines       70318    70311       -7     
  Branches     1966     1964       -2     
==========================================
- Hits        40653    40645       -8     
  Misses      27808    27808              
- Partials     1857     1858       +1     

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