Change the version of the bs-color-scheme.js MathJax extension.

Since we are now on MathJax 4.1.1 and the version specified in the
`bs-color-scheme.js` file is 4.1.0, a console warning points out the
version mismatch.

We will need to remember to change this every time we upgrade MathJax.
Of course the extension will also need to be updated for changes to
MathJax.

Author: drgrice1

htdocs/js/MathJaxConfig/bs-color-scheme.js

@@ -1,4 +1,4 @@
-if (MathJax.loader) MathJax.loader.checkVersion('[bs-color-scheme]', '4.1.0', 'extension');
+if (MathJax.loader) MathJax.loader.checkVersion('[bs-color-scheme]', '4.1.1', 'extension');
 
 const switchToBSStyle = (obj, key = '@media (prefers-color-scheme: dark)') => {
 	obj["[data-bs-theme='dark']"] = obj[key];