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/stores/EventsStore.ts

@@ -0,0 +1,22 @@
+import { sortBy, filter } from "lodash";
+import { computed } from "mobx";
+import Event from "~/models/Event";
+import BaseStore, { RPCAction } from "./BaseStore";
+import RootStore from "./RootStore";
+
+export default class EventsStore extends BaseStore<Event> {
+  actions = [RPCAction.List];
+
+  constructor(rootStore: RootStore) {
+    super(rootStore, Event);
+  }
+
+  @computed
+  get orderedData(): Event[] {
+    return sortBy(Array.from(this.data.values()), "createdAt").reverse();
+  }
+
+  inDocument(documentId: string): Event[] {
+    return filter(this.orderedData, (event) => event.documentId === documentId);
+  }
+}