Add GPU and JAX hardware details to status page

- Add nvidia-smi output to show GPU availability
- Add JAX backend check to confirm GPU usage
- Matches format used in lecture-python.myst

Author: mmcky

lectures/status.md

@@ -31,4 +31,18 @@ and the following package versions
 ```{code-cell} ipython
 :tags: [hide-output]
 !conda list
+```
+
+This lecture series has access to the following GPU
+
+```{code-cell} ipython
+!nvidia-smi
+```
+
+You can check the backend used by JAX using:
+
+```{code-cell} ipython3
+import jax
+# Check if JAX is using GPU
+print(f"JAX backend: {jax.devices()[0].platform}")
 ```