Fix login form scrolling

client/src/app/core/routing/scroll.service.ts

@@ -67,7 +67,7 @@ export class ScrollService {
   private consumeScroll () {
     // Handle anchors/restore position
     this.peertubeRouter.getScrollEvents().subscribe(e => {
-      logger('Will schedule scroll after router event %o.', e)
+      logger('Will schedule scroll after router event %o.', { e, resetScroll: this.resetScroll })
 
       // scrollToAnchor first to preserve anchor position when using history navigation
       if (e.anchor) {

client/src/app/shared/shared-main/angular/autofocus.directive.ts

@@ -7,6 +7,8 @@ export class AutofocusDirective implements AfterViewInit {
   constructor (private host: ElementRef) { }
 
   ngAfterViewInit () {
-    this.host.nativeElement.focus()
+    const el = this.host.nativeElement as HTMLElement
+
+    el.focus({ preventScroll: true })
   }
 }