Fix template context

fabcal/routers/frontend.py

@@ -1,5 +1,3 @@
-import base64
-
 from datetime import datetime
 
 import babel.dates
@@ -28,31 +26,16 @@ async def generate_response(request: Request, template_name: str, **additional_c
     def localized_abbreviated_weekday(dt: datetime):
         return babel.dates.format_datetime(dt, format="%b", locale="de_DE")
 
-    def base64_encode(s: str):
-        return base64.b64encode(s.encode()).decode()
-
     context = {
         "request": request,
         "grouped_events": grouped_events,
-        "dir": dir,
         "localized_abbreviated_month": localized_abbreviated_month,
         "localized_abbreviated_weekday": localized_abbreviated_weekday,
-        "base64_encode": base64_encode,
     }
 
     context.update(additional_context)
 
-    return templates.TemplateResponse(
-        template_name,
-        context={
-            "request": request,
-            "grouped_events": grouped_events,
-            "dir": dir,
-            "localized_abbreviated_month": localized_abbreviated_month,
-            "localized_abbreviated_weekday": localized_abbreviated_weekday,
-            "base64_encode": base64_encode,
-        },
-    )
+    return templates.TemplateResponse(template_name, context=context)
 
 
 @router.get("/sidebar/embed.html", response_class=HTMLResponse)