build(docs-infra): upgrade @angular/cli to 8.0.0-beta.18 (#29926)

This commit also changes the config files and their layout to
(reasonably closely) match what the cli would generate for a new app.

Related Jira issue: [TOOL-815](https://angular-team.atlassian.net/browse/TOOL-815)

PR Close #29926

aio/angular.json

@@ -13,6 +13,13 @@
       "root": "",
       "sourceRoot": "src",
       "projectType": "application",
+      "prefix": "aio",
+      "schematics": {
+        "@schematics/angular:component": {
+          "inlineStyle": true,
+          "style": "scss"
+        }
+      },
       "architect": {
         "build": {
           "builder": "@angular-devkit/build-angular:browser",
@@ -20,8 +27,9 @@
             "outputPath": "dist",
             "index": "src/index.html",
             "main": "src/main.ts",
-            "tsConfig": "src/tsconfig.app.json",
-            "webWorkerTsConfig": "src/tsconfig.worker.json",
+            "polyfills": "src/polyfills.ts",
+            "tsConfig": "tsconfig.app.json",
+            "webWorkerTsConfig": "tsconfig.worker.json",
             "aot": true,
             "optimization": true,
             "buildOptimizer": true,
@@ -32,7 +40,6 @@
             "extractLicenses": true,
             "namedChunks": true,
             "vendorChunk": false,
-            "polyfills": "src/polyfills.ts",
             "assets": [
               "src/assets",
               "src/generated",
@@ -61,8 +68,8 @@
             "next": {
               "fileReplacements": [
                 {
-                  "src": "src/environments/environment.ts",
-                  "replaceWith": "src/environments/environment.next.ts"
+                  "replace": "src/environments/environment.ts",
+                  "with": "src/environments/environment.next.ts"
                 }
               ],
               "serviceWorker": true
@@ -70,8 +77,8 @@
             "stable": {
               "fileReplacements": [
                 {
-                  "src": "src/environments/environment.ts",
-                  "replaceWith": "src/environments/environment.stable.ts"
+                  "replace": "src/environments/environment.ts",
+                  "with": "src/environments/environment.stable.ts"
                 }
               ],
               "serviceWorker": true
@@ -79,8 +86,8 @@
             "archive": {
               "fileReplacements": [
                 {
-                  "src": "src/environments/environment.ts",
-                  "replaceWith": "src/environments/environment.archive.ts"
+                  "replace": "src/environments/environment.ts",
+                  "with": "src/environments/environment.archive.ts"
                 }
               ],
               "serviceWorker": true
@@ -120,14 +127,10 @@
           "builder": "@angular-devkit/build-angular:karma",
           "options": {
             "main": "src/test.ts",
-            "karmaConfig": "src/karma.conf.js",
             "polyfills": "src/polyfills.ts",
-            "tsConfig": "src/tsconfig.spec.json",
-            "webWorkerTsConfig": "src/tsconfig.worker.json",
-            "scripts": [],
-            "styles": [
-              "src/styles.scss"
-            ],
+            "tsConfig": "tsconfig.spec.json",
+            "webWorkerTsConfig": "tsconfig.worker.json",
+            "karmaConfig": "karma.conf.js",
             "assets": [
               "src/assets",
               "src/generated",
@@ -143,27 +146,27 @@
                 "input": "node_modules/@webcomponents/custom-elements/src",
                 "output": "/assets/js"
               }
-            ]
+            ],
+            "styles": [
+              "src/styles.scss"
+            ],
+            "scripts": []
           }
         },
         "lint": {
           "builder": "@angular-devkit/build-angular:tslint",
           "options": {
             "tsConfig": [
-              "src/tsconfig.app.json",
-              "src/tsconfig.spec.json"
+              "tsconfig.app.json",
+              "tsconfig.spec.json",
+              "tsconfig.worker.json",
+              "tests/e2e/tsconfig.json"
             ],
-            "exclude": []
+            "exclude": [
+              "**/node_modules/**"
+            ]
           }
-        }
-      }
-    },
-    "site-e2e": {
-      "root": "",
-      "projectType": "application",
-      "cli": {},
-      "schematics": {},
-      "architect": {
+        },
         "e2e": {
           "builder": "@angular-devkit/build-angular:protractor",
           "options": {
@@ -175,27 +178,9 @@
               "devServerTarget": "site:serve:ci"
             }
           }
-        },
-        "lint": {
-          "builder": "@angular-devkit/build-angular:tslint",
-          "options": {
-            "tsConfig": [
-              "tests/e2e/tsconfig.e2e.json"
-            ],
-            "exclude": []
-          }
         }
       }
     }
   },
-  "schematics": {
-    "@schematics/angular:component": {
-      "inlineStyle": true,
-      "prefix": "aio",
-      "styleext": "scss"
-    },
-    "@schematics/angular:directive": {
-      "prefix": "aio"
-    }
-  }
+  "defaultProject": "site"
 }