Moved repositories to setting.gradle.kts

[dkrasnoff]

Put all repositories into pluginManagement and dependencyResolutionManagement. This approach creates a single place with all available repositories for all projects. Also, for dependencyResolutionManagement set a RepositoriesMode.PREFER_SETTINGS), which enables repositories only from setting file, but allows to configure repositories during the build (the last one will be then ignored).