Confusing duplicate flow when creating issue: tool approval prompt appears alongside MCP app

### Problem

Creating an issue from chat shows two conflicting UX flows at the same time:

- An MCP app card for submitting the issue
- A separate **tool approval prompt** still asks to allow `GitHub-issue_write`

This is confusing because it looks like approval is still required even though I can create with the mcp app ui

### Repro steps

1. Ask the assistant to file a GitHub issue from chat.
2. Observe the UI after the action runs.

### Actual

- The GitHub MCP app shows the issue form
- A tool approval prompt for the same action is shown at the same time.

### Expected

Only one clear flow should be shown.

### Additional context

Observed in VS Code Insiders while filing issues to `microsoft/vscode` from an agent session.