fix: change config dict by settings config dict to allow reading of env file and ignoring extras

Author: GermanMT

app/settings.py

@@ -1,11 +1,11 @@
 from functools import lru_cache
 
-from pydantic import ConfigDict, Field
-from pydantic_settings import BaseSettings
+from pydantic import Field
+from pydantic_settings import BaseSettings, SettingsConfigDict
 
 
 class Settings(BaseSettings):
-    model_config = ConfigDict(env_file=".env")
+    model_config = SettingsConfigDict(env_file=".env", extra="ignore")
 
     # Database connections (required)
     GRAPH_DB_URI: str = Field(..., alias="GRAPH_DB_URI")