fix(client): clean up typescript target configurations

apps/client/tsconfig.app.json

@@ -4,7 +4,6 @@
     "outDir": "../../dist/out-tsc",
     "types": ["node"],
     "typeRoots": ["../../node_modules/@types"],
-    "target": "ES2022",
     "useDefineForClassFields": false
   },
   "files": ["src/main.ts", "src/polyfills.ts"],

apps/client/tsconfig.json

@@ -22,7 +22,6 @@
   "compilerOptions": {
     "lib": ["dom", "es2022"],
     "module": "preserve",
-    "strictNullChecks": true,
-    "target": "es2020"
+    "strictNullChecks": true
   }
 }

apps/client/tsconfig.spec.json

@@ -4,8 +4,7 @@
     "outDir": "../../dist/out-tsc",
     "module": "preserve",
     "isolatedModules": true,
-    "types": ["jest", "node"],
-    "target": "es2016"
+    "types": ["jest", "node"]
   },
   "files": ["src/test-setup.ts"],
   "include": ["**/*.spec.ts", "**/*.test.ts", "**/*.d.ts", "jest.config.ts"]