Fix issues in math equations

Fix error in display of math equations with dot

Description

Addressing the issue 'Why variables with dots are displayed green?'

Screenshots/Logs

Testing Instructions

1. [Step 1: How to test]
2. [Step 2: Expected outcome]
3. [Step 3: Additional steps if required]

Developer Checklist

• Code has been tested locally and/or in pipeline.
• (if applicable) documentation updated.
• (if applicable) impact of new dependencies reviewed and included in project.
• Merge conflicts resolved with the target branch.

Additional Notes

Add any information reviewers should focus on, e.g., specific files, functions, or changes of interest.

docs/assets/css/unicado.css

@@ -37,6 +37,21 @@
   font-size: 1.1em;
 }
 
+/* Make all LaTeX-style math equations white */
+:root {
+  --math-color: #ffffff; /* Set the default color for equations */
+}
+
+/* MathJax equations */
+.MathJax, mjx-container, math {
+  color: var(--math-color) !important;
+}
+
+/* KaTeX equations */
+.katex, .katex-display {
+  color: var(--math-color) !important;
+}
+
 /* Download button styling */
 .download-button-container {
   text-align: center;