DO-1530: remove skip lib check

and include DOM lib

packages/esbuild/tsconfig.json

@@ -1,3 +1,6 @@
 {
-  "extends": "../../tsconfig.json"
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "skipLibCheck": true
+  }
 }

tsconfig.json

@@ -2,7 +2,7 @@
   "compilerOptions": {
     "target": "ES2018",
     "module": "commonjs",
-    "lib": ["es2018"],
+    "lib": ["es2018", "DOM"],
     "declaration": true,
     "strict": true,
     "noImplicitAny": true,
@@ -19,11 +19,6 @@
     "strictPropertyInitialization": false,
     "typeRoots": ["./node_modules/@types"],
     "types": ["node", "jest"],
-
-    // https://github.com/microsoft/TypeScript-DOM-lib-generator/issues/826
-    // Ideally this should only be specified in packages/esbuild/tsconfig.json, however it doesn't seem to be
-    // loading that config file during build.
-    "skipLibCheck": true
   },
   "exclude": ["**/node_modules", "cdk.out", "**/handlers/**"]
 }