feat: upgrade to v15 (#2230)

* feat: upgrade to v15

* refactor: fix build failure

* refactor: update service

* refactor: updating tsconfig

* refactor: revert post install

Author: anandtiwary

angular.json

@@ -40,7 +40,7 @@
               "includePaths": ["./projects/assets-library/assets/styles", "./node_modules"]
             },
             "scripts": [],
-            "allowedCommonJsDependencies": ["graphql-tag", "zen-observable"],
+            "allowedCommonJsDependencies": ["graphql-tag", "zen-observable", "mixpanel-browser", "iso8601-duration"],
             "vendorChunk": true,
             "extractLicenses": false,
             "buildOptimizer": false,
@@ -96,7 +96,10 @@
           }
         },
         "test": {
-          "builder": "@angular-builders/jest:run"
+          "builder": "@angular-builders/jest:run",
+          "options": {
+            "silent": true
+          }
         },
         "lint": {
           "builder": "@angular-eslint/builder:lint",

jest.config.js

@@ -14,15 +14,6 @@ module.exports = {
   preset: 'jest-preset-angular',
   setupFilesAfterEnv: ['<rootDir>/setup-jest.ts'],
   globalSetup: 'jest-preset-angular/global-setup',
-  transform: {
-    '^.+\\.(ts|js|html|svg)$': [
-      'jest-preset-angular',
-      {
-        tsconfig: '<rootDir>/tsconfig.spec.json',
-        stringifyContentPathRegex: '\\.(html|svg)$'
-      }
-    ]
-  },
   reporters: [
     'default',
     [