ESLint fixes and unified lint targets (#3424)

* optimise lint targets

* fix eslint config files

* fix app coverage settings

* tune eslint to warn about optional chains

projects/aca-content/.eslintrc.js

@@ -1,23 +1,15 @@
-path = require("path");
+const path = require('path');
 module.exports = {
-  "extends": "../../.eslintrc.json",
-  "ignorePatterns": [
-    "!**/*"
-  ],
-  "overrides": [
+  extends: '../../.eslintrc.json',
+  ignorePatterns: ['!**/*'],
+  overrides: [
     {
-      "files": [
-        "*.ts"
-      ],
-      "parserOptions": {
-        "project": [
-          path.join(__dirname, "tsconfig.lib.json"),
-          path.join(__dirname, "tsconfig.spec.json")
-        ],
-        "createDefaultProgram": true
+      files: ['*.ts'],
+      parserOptions: {
+        project: [path.join(__dirname, 'tsconfig.lib.json'), path.join(__dirname, 'tsconfig.spec.json')],
+        createDefaultProgram: true
       },
-      "rules": {
-      }
+      rules: {}
     }
   ]
-}
+};

projects/aca-content/project.json

@@ -41,19 +41,7 @@
       }
     },
     "lint": {
-      "executor": "@angular-eslint/builder:lint",
-      "options": {
-        "lintFilePatterns": [
-          "projects/aca-content/**/*.ts",
-          "projects/aca-content/**/*.html"
-        ],
-        "cache": true,
-        "cacheLocation": ".eslintcache",
-        "ignorePath": ".eslintignore"
-      },
-      "outputs": [
-        "{options.outputFile}"
-      ]
+      "executor": "@angular-eslint/builder:lint"
     }
   }
 }