chore: Move to Typescript (#2783)

This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282

server/queues/processors/emails.ts

@@ -0,0 +1,12 @@
+import mailer, { EmailSendOptions, EmailTypes } from "../../mailer";
+
+type EmailEvent = {
+  type: EmailTypes;
+  opts: EmailSendOptions;
+};
+
+export default class EmailsProcessor {
+  async on(event: EmailEvent) {
+    await mailer[event.type](event.opts);
+  }
+}