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

app/models/User.ts

@@ -0,0 +1,45 @@
+import { computed } from "mobx";
+import { Role } from "@shared/types";
+import BaseModel from "./BaseModel";
+
+class User extends BaseModel {
+  avatarUrl: string;
+
+  id: string;
+
+  name: string;
+
+  email: string;
+
+  color: string;
+
+  isAdmin: boolean;
+
+  isViewer: boolean;
+
+  lastActiveAt: string;
+
+  isSuspended: boolean;
+
+  createdAt: string;
+
+  language: string;
+
+  @computed
+  get isInvited(): boolean {
+    return !this.lastActiveAt;
+  }
+
+  @computed
+  get role(): Role {
+    if (this.isAdmin) {
+      return "admin";
+    } else if (this.isViewer) {
+      return "viewer";
+    } else {
+      return "member";
+    }
+  }
+}
+
+export default User;