chore: upgrade to angular v11

Author: manekinekko

browserslist renamed to .browserslistrc

@@ -42,7 +42,6 @@
               "optimization": true,
               "outputHashing": "all",
               "sourceMap": false,
-              "extractCss": true,
               "namedChunks": false,
               "extractLicenses": true,
               "vendorChunk": false,
@@ -131,7 +130,7 @@
       "prefix": "lib",
       "architect": {
         "build": {
-          "builder": "@angular-devkit/build-ng-packagr:build",
+          "builder": "@angular-devkit/build-angular:ng-packagr",
           "options": {
             "tsConfig": "projects/manekinekko/angular-web-bluetooth/tsconfig.lib.json",
             "project": "projects/manekinekko/angular-web-bluetooth/ng-package.json"

angular.json

@@ -3,7 +3,7 @@
   "compilerOptions": {
     "outDir": "../out-tsc/e2e",
     "module": "commonjs",
-    "target": "es5",
+    "target": "es2018",
     "types": [
       "jasmine",
       "jasminewd2",