[Bug] UI clicks ignored on first attempt — requires clicking, pausing, then clicking again (macOS)

### Short summary

Many UI buttons and session items require clicking, pausing briefly, then clicking again before the action takes effect (macOS).

### Affected version or release

1.0.22

### Installation context

_No response_

### What happened?

Many UI interactions in the GitHub Copilot app don't respond to a single click. Instead, I have to click once, pause briefly, and then click again for the action to register. The first click appears to be swallowed or ignored — only after a short pause does the second click take effect.

This affects various buttons and session items throughout the app.

Environment:
- **OS:** macOS 15.5 (24G517)

### Steps to reproduce

1. Open the GitHub Copilot app.
2. Click on a button or a session item (e.g., switching sessions, action buttons).
3. Observe that the first click does not register — there is no visible response.
4. Pause briefly, then click the same target again — the action now takes effect.

### Expected behavior

A single click should trigger the intended action immediately.

### Additional context

- This is reproducible consistently across different buttons and session interactions.
- It is **not** a rapid double-click — the issue is that the first click is ignored and a second click after a brief pause is needed.
- Debug logs:

Beginne damit, das Verhalten zu reproduzieren, bei dem der erste Klick in der GitHub Copilot app 1.0.22 unter macOS 15.5 ignoriert wird, und überprüfe dabei sowohl Sitzungselemente als auch Aktionsschaltflächen. Verfolge den gemeinsamen Pfad zur Klickverarbeitung, der von diesen Interaktionen verwendet wird. Erledigt ist die Aufgabe, wenn ein einzelner Klick die beabsichtigte sichtbare Aktion in der betroffenen UI sofort ausführt.

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