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/hooks/useMobile.ts

@@ -0,0 +1,7 @@
+import { useTheme } from "styled-components";
+import useMediaQuery from "~/hooks/useMediaQuery";
+
+export default function useMobile(): boolean {
+  const theme = useTheme();
+  return useMediaQuery(`(max-width: ${theme.breakpoints.tablet}px)`);
+}