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

shared/utils/color.ts

@@ -0,0 +1,2 @@
+export const validateColorHex = (color: string) =>
+  /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(color);