fixed drag and drop behavior

frontend/src/components/cover-grid/album-dropdown.ts

@@ -327,7 +327,7 @@ export class AlbumDropdown extends LitElement {
         return html`
             <div
                 class=${classes}
-                draggable=${selected ? 'true' : 'false'}
+                draggable="true"
                 @click=${(e: MouseEvent) =>
                     this.onTrackClick(e, track, index)}
                 @dblclick=${(e: MouseEvent) =>

frontend/src/components/cover-grid/cover-grid.ts

@@ -2601,7 +2601,7 @@ export class CoverGrid extends LitElement {
                 role="button"
                 data-index=${index}
                 aria-label="${album.Name} by ${album.ArtistName}"
-                draggable=${selected ? 'true' : 'false'}
+                draggable="true"
                 @dragstart=${this.onAlbumDragStart}
                 @dragend=${this.onAlbumDragEnd}
             >