add ng-bootstrap

angular.json

@@ -21,7 +21,8 @@
             "index": "src/index.html",
             "browser": "src/main.ts",
             "polyfills": [
-              "zone.js"
+              "zone.js",
+              "@angular/localize/init"
             ],
             "tsConfig": "tsconfig.app.json",
             "inlineStyleLanguage": "less",
@@ -32,6 +33,7 @@
               }
             ],
             "styles": [
+              "node_modules/bootstrap/dist/css/bootstrap.min.css",
               "@angular/material/prebuilt-themes/azure-blue.css",
               "src/styles.less"
             ],
@@ -87,7 +89,8 @@
           "options": {
             "polyfills": [
               "zone.js",
-              "zone.js/testing"
+              "zone.js/testing",
+              "@angular/localize/init"
             ],
             "tsConfig": "tsconfig.spec.json",
             "inlineStyleLanguage": "less",