Update app.py

app.py

@@ -141,18 +141,11 @@ def render_message(history):
     return messages_html
 
 js = """
-document.addEventListener("DOMContentLoaded", function() {
-    MathJax = {
-        tex: {
-            inlineMath: [['$', '$'], ['\\(', '\\)']],
-            displayMath: [['$$', '$$'], ['\\[', '\\]']]
-        },
-        svg: {
-            fontCache: 'global'
-        }
-    };
-    MathJax.typeset(); // Process math expressions globally
-})
+function processMath() {
+    if (typeof MathJax !== 'undefined') {
+        MathJax.typeset();
+    }
+}
 """
 
 css="""