Widgets: Setting selectAction on Adaptive Card root forces all content to be vertically aligned

Describe the bug

When specifying a selectAction on an Adaptive Card for the Widget Board, it always centers its content vertically, no matter what "height": "stretch" or "verticalContentAlignment": "Bottom" values I specify in the JSON.

Steps to reproduce the bug

Use this Adaptive Card template:

  {
      "type": "AdaptiveCard",
      "$schema": "https://adaptivecards.io/schemas/adaptive-card.json",
      "version": "1.5",
      "header": null,
      "body": [
          {
              "type": "Container",
              "items": [
                  {
                      "type": "TextBlock",
                      "text": "some text"
                  }
              ],
              "height": "stretch",
              "verticalContentAlignment": "Bottom"
          },
          {
              "type": "TextBlock",
              "text": "some text #2"
          }
      ],
      "selectAction": {
          "type": "Action.Execute"
      },
      "verticalContentAlignment": "Bottom"
  }

Expected behavior

The moment I remove the selectAction from the example above, I get the expected result

Screenshots

No response

NuGet package version

Windows App SDK 1.7.3: 1.7.250606001

Packaging type

Packaged (MSIX)

Windows version

Windows 11 version 24H2 (22621, October 2024 Update)

IDE

Visual Studio 2022

Additional context

No response

Start with the Adaptive Card template in the issue and reproduce it in the Windows App SDK Widget Board, comparing layout with and without the root selectAction. Trace the card rendering path for verticalContentAlignment and height; done when the specified bottom or stretch alignment is preserved while selectAction is present.