Fix HTTP status code check to accept 201 Created

- Change decodeJsonFromRequest to accept all 2xx status codes (200-299)
- Previously only accepted status 200, causing 201 Created to be treated as error
- Vikunja API returns 201 when creating tasks, which is correct HTTP behavior
- This was the root cause of "unexpected status code 201" error

Co-authored-by: Mord0reK <135718526+Mord0reK@users.noreply.github.com>

internal/glance/widget-utils.go

@@ -73,7 +73,7 @@ func decodeJsonFromRequest[T any](client requestDoer, request *http.Request) (T,
 		return result, err
 	}
 
-	if response.StatusCode != http.StatusOK {
+	if response.StatusCode < 200 || response.StatusCode >= 300 {
 		truncatedBody, _ := limitStringLength(string(body), 256)
 
 		return result, fmt.Errorf(