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/IntegrationsStore.ts

@@ -0,0 +1,26 @@
+import { filter } from "lodash";
+import { computed } from "mobx";
+import naturalSort from "@shared/utils/naturalSort";
+import BaseStore from "~/stores/BaseStore";
+import RootStore from "~/stores/RootStore";
+import Integration from "~/models/Integration";
+
+class IntegrationsStore extends BaseStore<Integration> {
+  constructor(rootStore: RootStore) {
+    super(rootStore, Integration);
+  }
+
+  @computed
+  get orderedData(): Integration[] {
+    return naturalSort(Array.from(this.data.values()), "name");
+  }
+
+  @computed
+  get slackIntegrations(): Integration[] {
+    return filter(this.orderedData, {
+      service: "slack",
+    });
+  }
+}
+
+export default IntegrationsStore;