small fixes and optimization

angular.json

               "extractLicenses": false,
               "vendorChunk": false,
               "buildOptimizer": true,
-              "fileReplacements": [{
-                "replace": "src/environments/environment.ts",
-                "with": "src/environments/environment.prod.ts"
-              }],
               "serviceWorker": true,
               "ngswConfigPath": "ngsw-config.json"
             }

ngsw-config.json

       "resources": {
         "files": [
           "/assets/**",
-          "/*.(eot|svg|cur|jpg|png|webp|gif|otf|ttf|woff|woff2|ani)",
+          "/*.(eot|svg|cur|jpg|png|webp|gif|otf|ttf|woff|woff2|ani)"
         ]
       }
     }

src/app/app-routing.module.ts

 import { NgModule } from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
-import { environment } from 'environments/environment';
 import { NotFoundComponent } from 'app/pages/not-found/not-found.component';
 import { ResumeComponent } from './pages/resume/resume.component';
 import { GamesDashboardComponent } from './pages/games-dashboard/games-dashboard.component';
 @NgModule({
     imports: [
         RouterModule.forRoot(routes, {
-            enableTracing: !environment.production
+            enableTracing: false
         }),
     ],
     exports: [RouterModule]

src/app/app.module.ts

 import { PdfHeaderComponent } from './page-header/pdf-header/pdf-header.component';
 import { MusicHeaderComponent } from './page-header/music-header/music-header.component';
 import { ServiceWorkerModule } from '@angular/service-worker';
-import { environment } from '../environments/environment';
 
 
 @NgModule({
     AppRoutingModule,
     ComponentsModule,
     PageHeaderModule,
-    ServiceWorkerModule.register('ngsw-worker.js', { enabled: environment.production }),
+    ServiceWorkerModule.register('ngsw-worker.js', { enabled: true }),
   ],
   providers: [],
   bootstrap: [AppComponent]

src/app/helper/service-helper.ts

-
-export namespace ServiceHelper {
-    export class GenericHelper {
-        public static deepClone(obj: Object) {
-            return JSON.parse(JSON.stringify(obj));
-        }
-    }
-    export const SPOTIFY_STAUS_CODES = {
-        OK: 200,
-        CREATED: 201,
-        ACCEPTED: 202,
-        NO_CONTENT: 204,
-        NOT_MODIFIED: 304,
-        BAD_REQUEST: 400,
-        UNAUTHORIZED: 401,
-        FORBIDDEN: 403,
-        NOT_FOUND: 404,
-        TOO_MANY: 429,
-        INTERNAL: 500,
-        BAD_GATEWAY: 502,
-        SERVICE_UNAVAILABLE: 503,
-    }
-    export class PaginationOptions { limit: number; offset: number; total: number; current: number; };
-    export class OfssetHelper {
-        /**
-         * Exptract Offset from URL.
-         * 
-         * @param url url with offset GET Param
-         * @returns offset if found if not -1
-         */
-        public getNextOffsetFromUrl(url: string): number {
-            const extractOffsetRegex = /(?:offset=)(\d+)/;
-            const offset = extractOffsetRegex.exec(url);
-            if (offset[1]) {
-                return parseInt(offset[1]);
-            }
-            return -1
-
-        }
-        public getNextOffset(responseBody: PaginationOptions) {
-            const maxOffset = responseBody.total - responseBody.limit;
-            if (
-                responseBody.total <= responseBody.limit ||
-                responseBody.offset >= responseBody.limit ||
-                responseBody.offset >= maxOffset
-            ) {
-                return -1;
-            }
-            if (responseBody.offset < 0) {
-                throw new Error("offset can't be smaller than 0!");
-            }
-            // if limit + current offset not overflows maxOffset return
-            if ((responseBody.limit + responseBody.offset) <= maxOffset) {
-                return responseBody.limit + responseBody.offset;
-            }
-            // return the rest
-            return responseBody.limit % responseBody.total;
-        }
-    }
-}
-

src/environments/environment.prod.ts

-export const environment = {
-  production: true
-};

src/environments/environment.ts

-// The file contents for the current environment will overwrite these during build.
-// The build system defaults to the dev environment which uses `environment.ts`, but if you do
-// `ng build --env=prod` then `environment.prod.ts` will be used instead.
-// The list of which env maps to which file can be found in `.angular-cli.json`.
-
-export const environment = {
-  production: false
-};

src/main.ts

 import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
 
 import { AppModule } from './app/app.module';
-import { environment } from './environments/environment';
 
-if (environment.production) {
-  enableProdMode();
-}
+enableProdMode();
 
 platformBrowserDynamic().bootstrapModule(AppModule);