* Refactor and simplify artifact publishing
* Update Gradle to 8.4
* Refactor and simplify convention plugins and build scripts

Fixes #3132

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Co-authored-by: Adam <897017+aSemy@users.noreply.github.com>
Co-authored-by: Oleg Yukhnevich <whyoleg@gmail.com>

Fixes #3035

* Add the default copyright profile and enable IDEA project settings
* Add the license notice file

* Deprecate unused declaration, remove inline declaration (as it's binary compatible), opt-in into internal API at project level
* Opt-in into DokkaInternalApi where applicable
* Get rid of intermediate test-utils module

* Use GitHub Actions Artifacts for snapshots

* Delete s3-cleanup.yml

* Fix trigger event

* Fix path

* Fix path again

* Maybe this path is better

* Restore env variable to save output to a known place

* Add retention days

* Replace stdlib with coroutines

* Replace S3Project with TestOutputCopier

* Restore S3 upload

* Change job name

* Fix imports

* Add TestOutputCopier to SdtlibIntegrationTest

* Save stdlib on S3 again

* Rename env variable

* Increase rentention-days

* Remove .kt as filter for test

* Fix skiping copying message

* Update Gradle and Kotlin version

* Update Jsoup to 1.14.3

* Fix Jsoup API breaking changes after the update

* Fix new Qodana inspections

* Replace IllegalStateException with more appropriate NoSuchElementException

* Add option to merge implicit expect-actual declarations

* Merge entries, constructors

* Fix StdLib integration test

* Add doc

* Introduce `documentedVisibilities` setting

* Remove hardcoded doc generation for Visibility.PUBLIC, correct tests

* Add maven, gradle and cli integration tests for documentedVisibilities

* Fix maven plugin configuration overriding the default value

* Remove test debug prints

* Correct an inconsistency with default values and leave a comment of intentions

* Add a test for visibility of private setter