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/Diagrams.test.ts

@@ -0,0 +1,19 @@
+import Diagrams from "./Diagrams";
+
+describe("Diagrams", () => {
+  const match = Diagrams.ENABLED[0];
+
+  test("to be enabled on viewer link", () => {
+    expect(
+      "https://viewer.diagrams.net/?target=blank&nav=1#ABCDefgh_A12345-6789".match(
+        match
+      )
+    ).toBeTruthy();
+  });
+
+  test("to not be enabled elsewhere", () => {
+    expect("https://app.diagrams.net/#ABCDefgh_A12345-6789".match(match)).toBe(
+      null
+    );
+  });
+});