Fixed bug where the UI attempted to generate a preview URL for placeholder file cards
Fixed bug where file renaming was always attempted even when not necessary
<button[disabled]="!running_download_exists"mat-stroked-button(click)="pauseAllDownloads()"><ng-containeri18n="Pause all downloads">Pause all downloads</ng-container></button>
<buttonstyle="margin-left: 10px;"[disabled]="!paused_download_exists"mat-stroked-button(click)="resumeAllDownloads()"><ng-containeri18n="Resume all downloads">Resume all downloads</ng-container></button>