add bsr, map and yt buttons to scores

src/common/string-utils.ts

@@ -0,0 +1,9 @@
+/**
+ * Capitalizes the first letter of a string.
+ *
+ * @param str the string to capitalize
+ * @returns the capitalized string
+ */
+export function capitalizeFirstLetter(str: string) {
+  return str.charAt(0).toUpperCase() + str.slice(1);
+}