Take in more override config with one call. (#96)

src/autogluon_assistant/utils/configs.py

@@ -1,5 +1,6 @@
 import importlib.resources
 import logging
+import re
 from pathlib import Path
 from typing import Any, Dict, List, Optional
 
@@ -69,6 +70,8 @@ def apply_overrides(config: Dict[str, Any], overrides: List[str]) -> Dict[str, A
 
     # Convert overrides to nested dict
     override_conf = {}
+    overrides = ",".join(overrides)
+    overrides = re.split(r"[,\s]+", overrides)
     for override in overrides:
         key, value = parse_override(override)