fix: Escape regex for embeds (#3907)

Fixes #3899

shared/editor/embeds/Pitch.test.ts

@@ -0,0 +1,18 @@
+import Pitch from "./Pitch";
+
+describe("Pitch", () => {
+  const match = Pitch.ENABLED[0];
+
+  test("to not be enabled elsewhere", () => {
+    expect(
+      "https://appppitch.com/app/presentation/aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa/player/c9d837d74182317".match(
+        match
+      )
+    ).toBe(null);
+    expect(
+      "https://app.pitchhcom/app/presentation/aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa/player/c9d837d74182317".match(
+        match
+      )
+    ).toBe(null);
+  });
+});