chore: Refactor configuration setup and command execution

- Remove commented out code and unused code related to settings, configuration change event handling, and message and config endpoints
- Fix bug where error messages are not printed when there are configuration errors and verbose mode is disabled
- Update vendorSha256, ldflags, buildInputs, and description for the docman package in flake.nix
- Remove Database struct and add Verbose field to AppConfig struct in source/config/definition.go
- Refactor TestMaskCodeBlocks function in source/utils/strings_test.go
- Modify SetUp function in source/config/setup.go
- Update ConfigPath and remove Release command in CommandsStruct struct in source/command/definition.go
- Change variable assignment and add error handling, command line argument parsing, setup of configuration, and execution of commands in source/command/execute.go
- Add version parameter and disable DIRENV_ENABLED and DIRENV_TRUSTED in .idea/runConfigurations/go_build_gitlab_schukai_com_oss_utilities_documentation_manager.xml