Switch TypeScript target to ES2023

tsconfig.json

@@ -5,7 +5,7 @@
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true,
     "jsx": "react",
-    "lib": ["ES2022", "ES2022.Intl", "DOM", "DOM.iterable"],
+    "lib": ["ES2023", "ES2023.Intl", "DOM", "DOM.iterable"],
     "moduleResolution": "node",
     "noImplicitAny": false, // TODO: Enable once all existing code is typed
     "noUnusedLocals": true,
@@ -14,7 +14,7 @@
     "skipLibCheck": true,
     "strictNullChecks": true,
     "strictPropertyInitialization": true,
-    "target": "ES2022"
+    "target": "ES2023"
   },
   "files": [
     "client/src/index.ts",