Azure genai fixes (#14103)

* Azure fixes

* clarify docs

* sublabels fix

web/src/utils/stringUtil.ts

@@ -1,3 +1,10 @@
 export const capitalizeFirstLetter = (text: string): string => {
   return text.charAt(0).toUpperCase() + text.slice(1);
 };
+
+export const capitalizeAll = (text: string): string => {
+  return text
+    .split(" ")
+    .map((word) => word.charAt(0).toUpperCase() + word.slice(1))
+    .join(" ");
+};