Keyboard Manager text shortcut pastes previous clipboard content on first press

### Microsoft PowerToys version

Release version: v0.98.1

### Installation method

Microsoft Store

### Area(s) with issue?

Keyboard Manager

### Steps to reproduce

1. Open PowerToys Keyboard Manager
2. Assign a shortcut (e.g. Win + 9) to a text string
3. Copy any text to clipboard
4. Press the assigned shortcut once
5. Press it again

### ✔️ Expected Behavior

The assigned text should be pasted immediately on the first key press.

### ❌ Actual Behavior

First key press pastes the previous clipboard content.

Second key press pastes the assigned text correctly.

### Upload Bug Report ZIP-file

_No response_

### Additional Information

Reproducibility: Always (100%)

This appears to be a clipboard timing issue.
It seems the clipboard content is updated after the paste event is triggered, causing the first paste to use the previous clipboard data.

### Other Software

_No response_

Start by reproducing the issue in Keyboard Manager with a text shortcut and an existing clipboard value. Trace the shortcut's text-paste path and clipboard update timing. Done means the assigned text is pasted on the first key press while preserving the documented second-press behavior as correct.

Written by the indexing model from the issue text.