test: remove warnings for TemplateResponse (#2368)

* test: remove warnings for `TemplateResponse`
removes warnings
```
tests/core/views/test_generic.py::test_core_views_generic
tests/core/views/test_generic.py::test_get_wallet_with_user_and_wallet
tests/core/views/test_generic.py::test_get_extensions
tests/core/views/test_public_api.py::test_core_views_generic
  /home/dni/.cache/pypoetry/virtualenvs/lnbits-XeqO4Z-j-py3.10/lib/python3.10/site-packages/starlette/templating.py:178: DeprecationWarning: The `name` is not the first para
meter anymore. The first parameter should be the `Request` instance.
  Replace `TemplateResponse(name, {"request": request})` by `TemplateResponse(request, name)`.
    warnings.warn(
```

lnbits/middleware.py

@@ -35,7 +35,7 @@ class InstalledExtensionMiddleware:
         # block path for all users if the extension is disabled
         if top_path in settings.lnbits_deactivated_extensions:
             response = self._response_by_accepted_type(
-                headers, f"Extension '{top_path}' disabled", HTTPStatus.NOT_FOUND
+                scope, headers, f"Extension '{top_path}' disabled", HTTPStatus.NOT_FOUND
             )
             await response(scope, receive, send)
             return
@@ -61,7 +61,7 @@ class InstalledExtensionMiddleware:
         await self.app(scope, receive, send)
 
     def _response_by_accepted_type(
-        self, headers: List[Any], msg: str, status_code: HTTPStatus
+        self, scope: Scope, headers: List[Any], msg: str, status_code: HTTPStatus
     ) -> Union[HTMLResponse, JSONResponse]:
         """
         Build an HTTP response containing the `msg` as HTTP body and the `status_code`
@@ -82,7 +82,7 @@ class InstalledExtensionMiddleware:
             return HTMLResponse(
                 status_code=status_code,
                 content=template_renderer()
-                .TemplateResponse("error.html", {"request": {}, "err": msg})
+                .TemplateResponse(Request(scope), "error.html", {"err": msg})
                 .body,
             )