Enhancement: add switch to allow merging non-PDFs with archive version (#9305)

src-ui/src/app/components/common/confirm-dialog/merge-confirm-dialog/merge-confirm-dialog.component.html

@@ -28,10 +28,16 @@
         </select>
     </div>
     <div class="form-check form-switch mt-4">
+      <input class="form-check-input" type="checkbox" role="switch" id="archiveFallbackSwitch" [(ngModel)]="archiveFallback">
+      <label class="form-check-label" for="archiveFallbackSwitch" i18n>Try to include archive version in merge for non-PDF files</label>
+    </div>
+    <div class="form-check form-switch mt-2">
       <input class="form-check-input" type="checkbox" role="switch" id="deleteOriginalsSwitch" [(ngModel)]="deleteOriginals" [disabled]="!userOwnsAllDocuments">
       <label class="form-check-label" for="deleteOriginalsSwitch" i18n>Delete original documents after successful merge</label>
     </div>
-    <p class="small text-muted fst-italic mt-4" i18n>Note that only PDFs will be included.</p>
+    @if (!archiveFallback) {
+      <p class="small text-muted fst-italic mt-4" i18n>Note that only PDFs will be included.</p>
+    }
 </div>
 <div class="modal-footer">
     <button type="button" class="btn" [class]="cancelBtnClass" (click)="cancel()" [disabled]="!buttonsEnabled">

src-ui/src/app/components/common/confirm-dialog/merge-confirm-dialog/merge-confirm-dialog.component.ts

@@ -29,6 +29,7 @@ export class MergeConfirmDialogComponent
   implements OnInit
 {
   public documentIDs: number[] = []
+  public archiveFallback: boolean = false
   public deleteOriginals: boolean = false
   private _documents: Document[] = []
   get documents(): Document[] {