optimized ui a little bit and added impressum

src/app/app.config.ts

@@ -1,4 +1,4 @@
-import {ApplicationConfig, provideBrowserGlobalErrorListeners, provideZonelessChangeDetection} from '@angular/core';
+import {ApplicationConfig, inject, provideAppInitializer, provideBrowserGlobalErrorListeners, provideZonelessChangeDetection} from '@angular/core';
 import { provideRouter } from '@angular/router';
 
 import { routes } from './app.routes';
@@ -7,6 +7,8 @@ import {provideHttpClient} from '@angular/common/http';
 import {provideTranslateService} from '@ngx-translate/core';
 import {provideTranslateHttpLoader} from '@ngx-translate/http-loader';
 import {LocalStoreConstants} from './constants/LocalStoreConstants';
+import {MatIconRegistry} from '@angular/material/icon';
+import {DomSanitizer} from '@angular/platform-browser';
 
 
 const INITIAL_LANG = getInitialLang();
@@ -26,6 +28,20 @@ export const appConfig: ApplicationConfig = {
         suffix: '.json'
       })
     }),
+    provideAppInitializer(() => {
+      const iconRegistry = inject(MatIconRegistry);
+      const sanitizer = inject(DomSanitizer);
+
+      iconRegistry.addSvgIcon(
+        'github',
+        sanitizer.bypassSecurityTrustResourceUrl('assets/logos/github.svg')
+      );
+
+      iconRegistry.addSvgIcon(
+        'linkedin',
+         sanitizer.bypassSecurityTrustResourceUrl('assets/logos/linkedIn.svg')
+      );
+    }),
   ]
 };