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/models/Revision.test.ts

@@ -0,0 +1,24 @@
+import { Revision } from "@server/models";
+import { buildDocument } from "@server/test/factories";
+import { flushdb } from "@server/test/support";
+
+beforeEach(() => flushdb());
+beforeEach(jest.resetAllMocks);
+describe("#findLatest", () => {
+  test("should return latest revision", async () => {
+    const document = await buildDocument({
+      title: "Title",
+      text: "Content",
+    });
+    await Revision.createFromDocument(document);
+    document.title = "Changed 1";
+    await document.save();
+    await Revision.createFromDocument(document);
+    document.title = "Changed 2";
+    await document.save();
+    await Revision.createFromDocument(document);
+    const revision = await Revision.findLatest(document.id);
+    expect(revision.title).toBe("Changed 2");
+    expect(revision.text).toBe("Content");
+  });
+});