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/embeds/Vimeo.test.ts

@@ -0,0 +1,18 @@
+import Vimeo from "./Vimeo";
+
+describe("Vimeo", () => {
+  const match = Vimeo.ENABLED[0];
+
+  test("to be enabled on video link", () => {
+    expect("https://vimeo.com/265045525".match(match)).toBeTruthy();
+  });
+
+  test("to not be enabled elsewhere", () => {
+    expect("https://vimeo.com".match(match)).toBe(null);
+    expect("https://www.vimeo.com".match(match)).toBe(null);
+    expect("https://vimeo.com/upgrade".match(match)).toBe(null);
+    expect("https://vimeo.com/features/video-marketing".match(match)).toBe(
+      null
+    );
+  });
+});