feat: implement badges endpoint and sharing functionality

utils/strings.go

@@ -8,3 +8,12 @@ import (
 func Capitalize(s string) string {
 	return fmt.Sprintf("%s%s", strings.ToUpper(s[:1]), s[1:])
 }
+
+func FindString(needle string, haystack []string, defaultVal string) string {
+	for _, s := range haystack {
+		if s == needle {
+			return s
+		}
+	}
+	return defaultVal
+}