Add ToastProvider component and useToast hook; update CabinetMaintenance for toast notifications; enhance Button styles and Tailwind CSS configuration

src/util/util.js

@@ -7,4 +7,8 @@ const getUserInfoFromSession = () => {
     }
 }
 
-export { getUserInfoFromSession };
+const toTitleCase = (str) => {
+    return str.replace(/\w\S*/g, function(txt){return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
+}
+
+export { getUserInfoFromSession, toTitleCase };