ssh: show CWD detection tip more prominently

tabby-ssh/src/components/sftpPanel.component.pug

@@ -17,6 +17,16 @@
     button.btn.btn-link.btn-close((click)='close()') !{require('../../../tabby-core/src/icons/times.svg')}
 
 .body(dropZone, (transfer)='uploadOne($event)')
+    a.alert.alert-info.d-flex.align-items-center(
+        *ngIf='shouldShowCWDTip && !cwdDetectionAvailable',
+        (click)='platform.openExternal("https://tabby.sh/go/cwd-detection")'
+    )
+        .mr-auto(translate)
+            strong(translate) Working directory detection
+            div(translate) Learn how to allow Tabby to detect remote shell's working directory.
+        button.close((click)='dismissCWDTip()')
+            i.fas.fa-close
+
     div(*ngIf='!sftp', translate) Connecting
     div(*ngIf='sftp')
         div(*ngIf='fileList === null', translate) Loading

tabby-ssh/src/components/sftpPanel.component.ts

@@ -26,11 +26,12 @@ export class SFTPPanelComponent {
     @Input() path = '/'
     @Output() pathChange = new EventEmitter<string>()
     pathSegments: PathSegment[] = []
+    @Input() cwdDetectionAvailable = false
 
     constructor (
         private ngbModal: NgbModal,
-        private platform: PlatformService,
         private notifications: NotificationsService,
+        public platform: PlatformService,
         @Optional() @Inject(SFTPContextMenuItemProvider) protected contextMenuProviders: SFTPContextMenuItemProvider[],
     ) {
         this.contextMenuProviders.sort((a, b) => a.weight - b.weight)
@@ -173,6 +174,14 @@ export class SFTPPanelComponent {
         this.platform.popupContextMenu(await this.buildContextMenu(item), event)
     }
 
+    get shouldShowCWDTip (): boolean {
+        return !window.localStorage.sshCWDTipDismissed
+    }
+
+    dismissCWDTip (): void {
+        window.localStorage.sshCWDTipDismissed = 'true'
+    }
+
     close (): void {
         this.closed.emit()
     }

tabby-ssh/src/components/sshTab.component.pug

@@ -41,6 +41,7 @@ sftp-panel.bg-dark(
     *ngIf='sftpPanelVisible',
     (click)='$event.stopPropagation()',
     [session]='sshSession',
+    [cwdDetectionAvailable]='session?.supportsWorkingDirectory()',
     (closed)='sftpPanelVisible = false'
 )