layout changes with media player and negative spacing at top of screen. updated sqlalchemy init for postgres deployment

src/app/app.html

@@ -1,6 +1,6 @@
 <app-navbar></app-navbar>
 <app-media-player></app-media-player>
-<main>
+<main [class.no-stream]="!hasStream()">
   <router-outlet></router-outlet>
 </main>
 <app-footer></app-footer>