fixed transfers dropdown being clipped by the terminal - fixes #4688

tabby-core/src/components/appRoot.component.pug

@@ -57,15 +57,20 @@ title-bar(
                         div([class.ml-3]='hasIcons(button.submenuItems)') {{item.title}}
 
             .d-flex(
-                *ngIf='activeTransfers.length > 0',
                 ngbDropdown,
-                [(open)]='activeTransfersDropdownOpen'
+                container='body',
+                #activeTransfersDropdown='ngbDropdown'
             )
                 button.btn.btn-secondary.btn-tab-bar(
+                    *ngIf='activeTransfers.length > 0',
                     title='File transfers',
                     ngbDropdownToggle
                 ) !{require('../icons/download-solid.svg')}
-                transfers-menu(ngbDropdownMenu, [(transfers)]='activeTransfers')
+                transfers-menu(
+                    ngbDropdownMenu,
+                    [(transfers)]='activeTransfers',
+                    (transfersChange)='onTransfersChange()'
+                )
 
         .drag-space.background([class.persistent]='config.store.appearance.frame == "thin" && hostApp.platform != Platform.macOS')