feat: NCS-63 User account implementation (#2)

User Profile info, no game before login/register, menu bar

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Co-authored-by: Lala, Shahd <Shahd.Lala@sybit.de>
Co-authored-by: shahdlala66 <shahd.lala66@gmail.com>
Reviewed-on: #2

src/app/components/chess-piece/chess-piece.component.html

@@ -1,3 +1,10 @@
 @if (pieceCode) {
-  <img class="piece" [src]="spriteUrl" [alt]="pieceCode" />
+  <img
+    class="piece"
+    [src]="spriteUrl"
+    [alt]="pieceCode"
+    [attr.draggable]="draggable ? 'true' : null"
+    (dragstart)="onDragStart($event)"
+    (dragend)="onDragEnd()"
+  />
 }