fix: correct Starlette TemplateResponse signature and pin exact dependencies in requirements.txt

app/main.py

@@ -36,11 +36,12 @@ app.include_router(api.router)
 app.include_router(proxy.router)
 
 @app.get("/", response_class=HTMLResponse)
+@app.head("/", response_class=HTMLResponse)
 async def index_view(request: Request):
     return templates.TemplateResponse(
-        "index.html",
-        {
-            "request": request,
+        request=request,
+        name="index.html",
+        context={
             "universes": UNIVERSES,
             "app_name": settings.app_name
         }