cleanup and rename provider to plugin

plugins/openlibrary/__init__.py

@@ -18,11 +18,11 @@ import requests
 
 from API.HTTP import HTTPClient
 from API.requests_client import get_requests_session
-from ProviderCore.base import Provider, SearchResult
+from PluginCore.base import Provider, SearchResult
 from SYS.utils import sanitize_filename
 from SYS.cli_syntax import get_field, get_free_text, parse_query
 from SYS.logger import log
-from plugins.metadata_provider import (
+from plugins.metadata_plugin import (
     archive_item_metadata_to_tags,
     fetch_archive_item_metadata,
 )
@@ -654,7 +654,7 @@ class OpenLibrary(Provider):
         ]
 
     # Domains that should be routed to this provider when the user supplies a URL.
-    # (Used by ProviderCore.registry.match_provider_name_for_url)
+    # (Used by PluginCore.registry.match_provider_name_for_url)
     URL_DOMAINS = (
         "openlibrary.org",
         "archive.org",