cleanup and rename provider to plugin

plugins/internetarchive/__init__.py

@@ -11,7 +11,7 @@ from typing import Any, Dict, List, Optional
 from urllib.parse import quote, unquote, urlparse
 
 from API.HTTP import _download_direct_file
-from ProviderCore.base import Provider, SearchResult
+from PluginCore.base import Provider, SearchResult
 from SYS.utils import sanitize_filename, unique_path
 from SYS.logger import log
 from SYS.config import get_provider_block