message: Rename `normalized` to `normalizedLanguage`
diff: export class LanguageCode {
  private language: string;
  - private normalized: string;
  + private normalizedLanguage: string;
  constructor(languageCodeStr: string) {
  this.language = languageCodeStr;
  - this.normalized = languageCodeStr.toLowerCase();
  + this.normalizedLanguage = languageCodeStr.toLowerCase();
  }
  matches(other: LanguageCode): boolean {
  - return this.normalized === other.normalized;
  + return this.normalizedLanguage === other.normalizedLanguage;
  }
  string(): string {
  return this.language;
  