Send crash reports to Slack automatically (#4111)

This uploads apples crash reports to our servers when telemetry is
enabled.

Rather than jumping via the website, it uploads to collab directly. (I'd
like
to update the panic handler to do this too to make it possible to work
on that end-to-end without zed.dev running).

Release Notes:

- Added reporting of crashes when telemetry is enabled

script/zed-local

@@ -116,7 +116,8 @@ setTimeout(() => {
         ZED_WINDOW_POSITION: positions[i],
         ZED_STATELESS: "1",
         ZED_ALWAYS_ACTIVE: "1",
-        ZED_SERVER_URL: "http://localhost:8080",
+        ZED_SERVER_URL: "http://localhost:3000",
+        ZED_RPC_URL: "http://localhost:8080/rpc",
         ZED_ADMIN_API_TOKEN: "secret",
         ZED_WINDOW_SIZE: `${instanceWidth},${instanceHeight}`,
         PATH: process.env.PATH,