update angular 11

Author: vicmans

README.md

@@ -7,6 +7,7 @@ This is a toggle switch button component, you can see the demo [here](http://vic
 
 | Angular | ng-toggle-button|
 | -------- |:------:| 
+| >=11.0.0 | v1.1.x |
 | >=10.0.0 | v1.0.x |
 | >=9.0.0  | v0.2.x |
 | v8.x.x   | v0.1.x |

angular.json

@@ -10,7 +10,7 @@
       "prefix": "lib",
       "architect": {
         "build": {
-          "builder": "@angular-devkit/build-ng-packagr:build",
+          "builder": "@angular-devkit/build-angular:ng-packagr",
           "options": {
             "tsConfig": "projects/ng-toggle/tsconfig.lib.json",
             "project": "projects/ng-toggle/ng-package.json"
@@ -74,7 +74,6 @@
               "optimization": true,
               "outputHashing": "all",
               "sourceMap": false,
-              "extractCss": true,
               "namedChunks": false,
               "aot": true,
               "extractLicenses": true,