feat: Enhance Face AI upload functionality and UI

- Updated MainWindow.axaml to increase height and add new UI elements for SSH upload configuration.
- Implemented commands for opening source and destination paths in file explorer.
- Added FaceUploadPath and SSH configuration properties to DataModel and AiSettingsViewModel.
- Introduced validation for FaceUploadPath format and commands for uploading face encoder output.
- Enhanced PickerPreferenceService to manage SSH credentials and upload preferences.
- Updated settings persistence to include FaceUploadPath and SSH preferences.
- Added tests for FaceUploadPath validation and upload command enabling logic.

.vscode/tasks.json

@@ -13,6 +13,19 @@
       ],
       "problemMatcher": "$msCompile",
       "group": "build"
+    },
+    {
+      "label": "build CatalogLite Avalonia",
+      "type": "process",
+      "command": "dotnet",
+      "args": [
+        "build",
+        "${workspaceFolder:Catalog}/CatalogLite/CatalogLite.csproj",
+        "--configuration",
+        "Debug"
+      ],
+      "problemMatcher": "$msCompile",
+      "group": "build"
     }
   ]
 }