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/components/PageTitle.tsx

@@ -0,0 +1,36 @@
+import { observer } from "mobx-react";
+import * as React from "react";
+import { Helmet } from "react-helmet";
+import { cdnPath } from "@shared/utils/urls";
+import useStores from "~/hooks/useStores";
+
+type Props = {
+  title: React.ReactNode;
+  favicon?: string;
+};
+
+const PageTitle = ({ title, favicon }: Props) => {
+  const { auth } = useStores();
+  const { team } = auth;
+
+  return (
+    <Helmet>
+      <title>
+        {team && team.name ? `${title} - ${team.name}` : `${title} - Outline`}
+      </title>
+      {favicon ? (
+        <link rel="shortcut icon" href={favicon} />
+      ) : (
+        <link
+          rel="shortcut icon"
+          type="image/png"
+          href={cdnPath("/favicon-32.png")}
+          sizes="32x32"
+        />
+      )}
+      <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    </Helmet>
+  );
+};
+
+export default observer(PageTitle);