Handle promise linting (#5488)

server/utils/authentication.ts

@@ -60,7 +60,7 @@ export async function signIn(
   await user.updateSignedIn(ctx.request.ip);
 
   // don't await event creation for a faster sign-in
-  Event.create({
+  void Event.create({
     name: "users.signin",
     actorId: user.id,
     userId: user.id,

server/utils/i18n.ts

@@ -25,9 +25,10 @@ export function opts(user?: User | null) {
  *
  * @returns i18n instance
  */
-export function initI18n() {
+export async function initI18n() {
   const lng = unicodeCLDRtoBCP47(env.DEFAULT_LANGUAGE);
-  i18n.use(backend).init({
+  i18n.use(backend);
+  await i18n.init({
     compatibilityJSON: "v3",
     backend: {
       loadPath: (language: string) =>