Natural sorting of variables values sorted by alphabetical

### What happened? I have a dashboard variable wanted to be sorted in natural ascending order but it becomes sorted in alphabetical descending order. All prefixes under the blanked out part of the image are the same value, assume `foo` <img width="192" alt="Image" src="https://github.com/user-attachments/assets/43c21ba1-e8a5-4f69-b24c-c4bd8d834bb4" /> <img width="196" alt="Image" src="https://github.com/user-attachments/assets/c2f37aab-01a6-470d-b2ae-e8ed13b19b59" /> ### What did you expect to happen? I expected the variable values to be sorted in natural ascending order, e.g. for the values shown in the screenshot above: ``` -2 -3 -4 -19 -20 -21 -22 -23 ``` ### Did this work before? Unsure ### How do we reproduce it? Sort by natural ascending order a list of variable values with identical prefix and suffixes of different length of digits. ### Is the bug inside a dashboard panel? _No response_ ### Environment (with versions)? Grafana: Enterprise 11.4.0 OS: Mac Browser: Island/Chrome ### Grafana platform? Kubernetes ### Datasource(s)? _No response_