refactor: initialize config via APP_INITIALIZER

Closes #181

src/app/app.component.ts

@@ -17,8 +17,6 @@ import {Router} from '@angular/router';
 import {App, URLOpenListenerEvent} from '@capacitor/app';
 import {SplashScreen} from '@capacitor/splash-screen';
 import {Platform, ToastController} from '@ionic/angular';
-import {NGXLogger} from 'ngx-logger';
-import {ConfigProvider} from './modules/config/config.provider';
 import {SettingsProvider} from './modules/settings/settings.provider';
 import {PAIAAuthService} from './modules/auth/paia/paia-auth.service';
 import {DefaultAuthService} from './modules/auth/default-auth.service';
@@ -52,8 +50,6 @@ export class AppComponent implements AfterContentInit {
    *
    * @param platform TODO
    * @param settingsProvider TODO
-   * @param configProvider TODO
-   * @param logger An angular logger
    * @param router The angular router
    * @param zone The angular zone
    * @param defaultAuth Auth Service
@@ -65,8 +61,6 @@ export class AppComponent implements AfterContentInit {
   constructor(
     private readonly platform: Platform,
     private readonly settingsProvider: SettingsProvider,
-    private readonly configProvider: ConfigProvider,
-    private readonly logger: NGXLogger,
     private readonly router: Router,
     private readonly zone: NgZone,
     private readonly defaultAuth: DefaultAuthService,
@@ -102,19 +96,6 @@ export class AppComponent implements AfterContentInit {
       await this.paiaAuth.init();
       await SplashScreen.hide();
 
-      // initialise the configProvider
-      try {
-        await this.configProvider.init();
-      } catch (error) {
-        if (
-          typeof error.name !== 'undefined' &&
-          error.name === 'ConfigInitError'
-        ) {
-          // TODO: Issue #43 handle initialisation error and inform user
-        }
-        this.logger.error(error);
-      }
-
       // set order of categories in settings
       this.settingsProvider.setCategoriesOrder([
         'profile',