build: add `isolatedModules` for typescript (#13228)

tsconfig.json

@@ -15,6 +15,7 @@
     "noImplicitOverride": true,
     "experimentalDecorators": true,
     "useUnknownInCatchVariables": false /* we aren't prepared for enabling this by default since ts 4.4*/,
+    "isolatedModules": true /* required for esbuild */,
     "lib": ["es2020"],
     "types": ["node", "jest", "jest-extended", "expect-more-jest"],
     "allowJs": true,