Ensure angular.json exists in project root when running 'ng lint'

Since Angular v16 this is required, otherwise it fails.
Makes no sense to me at all...

Author: ccremer

.gitignore

@@ -27,6 +27,7 @@ node_modules/
 
 # generated output
 dist
+/angular.json
 
 # test output
 playwright-report

packages/kubernetes-client-angular/package.json

@@ -6,8 +6,9 @@
     "dev": "ng serve",
     "preformat": "node ../../README.cjs projects/kubernetes-client-angular/README.md.njk > projects/kubernetes-client-angular/README.md",
     "format": "prettier --write ./**/*.{js,ts,json}",
-    "prelint": "npm run format",
+    "prelint": "npm run format && ln -sf ${PWD}/angular.json ../../angular.json",
     "lint": "ng lint",
+    "postlint": "rm -f ../../angular.json",
     "build": "for PROJ in $(ls projects); do ng build $PROJ; done",
     "watch": "ng build --watch --configuration development",
     "pree2e": "playwright install",