feat: Rename to Toju and add translation

toju-app/src/app/domains/access-control/domain/rules/role-display.rules.ts

@@ -0,0 +1,20 @@
+const SYSTEM_ROLE_DISPLAY_I18N_KEYS: Readonly<Record<string, string>> = {
+  Member: 'shared.leaveServer.roles.member',
+  Owner: 'shared.leaveServer.roles.owner',
+  '@everyone': 'shared.accessControl.roles.everyone',
+  Moderator: 'shared.leaveServer.roles.moderator',
+  Admin: 'shared.leaveServer.roles.admin'
+};
+
+export function resolveSystemRoleDisplayI18nKey(displayName: string): string | null {
+  return SYSTEM_ROLE_DISPLAY_I18N_KEYS[displayName] ?? null;
+}
+
+export function localizeSystemRoleDisplayName(
+  displayName: string,
+  translate: (key: string) => string
+): string {
+  const key = resolveSystemRoleDisplayI18nKey(displayName);
+
+  return key ? translate(key) : displayName;
+}