refactor: Add GitDataSource, FileDataSource, toast for errors (#18385)

* refactor: Add GitDataSource, FileDataSource, toast for errors

* Fix

* fix

* Fix: use frontend-shared for common optimizeDeps

* schema/type fixes

* add debug for circle job

* add debug for circle job

* Attempting to debug CI flake

* Fix types

* Attempt to fix

* Revert "Attempt to fix"

This reverts commit 12a8db455a.

* Just use more parallelization?

* See if this fixes it

* remove debug

* Force browser relaunch?

* use internal ENV var

packages/server/tsconfig.json

@@ -8,8 +8,10 @@
     "./../ts/index.d.ts"
   ],
   "compilerOptions": {
+    "lib": ["ES2020"],
     "types": ["mocha", "node"],
     "importHelpers": true,
-    "resolveJsonModule": true
+    "resolveJsonModule": true,
+    "noUnusedLocals": false,
   }
 }