build: Use lint-staged

Introducing lint-staged with husky to lint files before they are
committed. This will help maintain the code standards in the project.

Also fixes some linting issues that were introduced in other PRs.

HTML files should be included after current issues with htmlhint are
fixed.

package.json

@@ -11,6 +11,7 @@
   "homepage": "https://github.com/openMF/web-app",
   "license": "MPL-2.0",
   "scripts": {
+    "prepare": "husky",
     "ng": "ng",
     "build": "node version.js && npm run env -s && ng build --configuration production --output-hashing=none",
     "build:prod": "node version.js && node --max-old-space-size=16384 ./node_modules/@angular/cli/bin/ng build --configuration production --output-hashing=none --base-href=/web-app/",
@@ -98,6 +99,7 @@
     "hads": "^3.0.3",
     "htmlhint": "1.1.4",
     "https-proxy-agent": "2.2.1",
+    "husky": "^9.1.7",
     "jasmine-core": "^4.2.0",
     "jasmine-spec-reporter": "~5.0.0",
     "karma": "~6.4.0",
@@ -108,6 +110,7 @@
     "karma-jasmine": "^5.1.0",
     "karma-jasmine-html-reporter": "^2.0.0",
     "karma-junit-reporter": "1.2.0",
+    "lint-staged": "^15.2.10",
     "prettier": "^3.3.3",
     "protractor": "~7.0.0",
     "puppeteer": "^15.3.2",
@@ -129,5 +132,10 @@
   "engines": {
     "node": ">= 16.15.1",
     "npm": ">= 8.11.0"
+  },
+  "lint-staged": {
+    "*.{js,jsx,ts,tsx}": "eslint --cache",
+    "*.{css,scss}": "stylelint",
+    "*": "prettier --check --ignore-unknown"
   }
 }