fix: app redirects on command palette launch

[d-rita]

Implements DHIS2-18943

---

Description

This PR separates the keydown logic specific to the command palette component from that attached to the document.

Previous Behaviour:

• Previously, when a user pressed the Enter key on the apps menu icon, an app would open immediately.
• This was due to the command palette launching and the document Enter key logic triggering the selection of the first highlighted item, hence redirecting to the app.

Fixed Behaviour:

• Only the key down logic for the keyboard shortcuts (Ctrl/Meta + /) used to open the command palette is attached to the document since it can be triggered anywhere within the app.
• All other keydown functionality specific for use within the command palette is attached to its parent component.
• Now, pressing the Enter key on the apps menu icon opens the command palette without a problem

---

Checklist

• API docs are generated
• Tests were added
• Storybook demos were added

---

Screenshots

Before

before.mov

After

after.mov

[dhis2-bot]

🚀 Deployed on https://pr-1658--dhis2-ui.netlify.app

[sonarqubecloud]

Quality Gate failed

Failed conditions
3 New issues
3 New Code Smells (required ≤ 0)

See analysis details on SonarQube Cloud

Catch issues before they fail your Quality Gate with our IDE extension SonarQube for IDE