WIP: attempt to fix issue with get_df (column names)

Cleanup & cosmetic

src/gisaf/api/geoapi.py

@@ -8,8 +8,7 @@ from typing import Annotated
 from asyncio import CancelledError
 
 from fastapi import (Depends, APIRouter, HTTPException, Response, Header,
-                     WebSocket, WebSocketDisconnect,
-                     status, responses)
+                     WebSocket, WebSocketDisconnect, status)
 
 from gisaf.models.authentication import User
 from gisaf.redis_tools import store as redis_store

src/gisaf/api/map.py

@@ -92,7 +92,10 @@ async def get_base_style(request: Request, name: str,
 async def get_layer_style(request: Request, store: str,
                           response: Response,
                           ) -> MaplibreStyle | None:
-    store_record = registry.stores.loc[store]
+    try:
+        store_record = registry.stores.loc[store]
+    except KeyError:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
     if store_record.is_live:
         ## No ttag for live layers' style (could be added?)
         ## Get layer_defs from live redis and give symbol