[client] Rename logout to deregister

[lixmal]

Describe your changes

Issue ticket number and link

Stack

Checklist

• Is it a bug fix
• Is a typo/documentation fix
• Is a feature enhancement
• It is a refactor
• Created tests that fail without the change (if possible)
• Extended the README / documentation, if necessary

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[Copilot]

Pull Request Overview

This pull request renames the "logout" functionality to "deregister" throughout the client UI and command line interface to better reflect the actual operation being performed. The change updates user-facing text elements while maintaining backward compatibility.

• Renames all UI button labels, dialog titles, and messages from "logout" to "deregister"
• Updates the CLI command from "logout" to "deregister" with "logout" as an alias for backward compatibility
• Maintains existing function names and internal logic while only changing user-facing terminology

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
client/ui/profile.go	Updates all UI text elements (buttons, dialogs, notifications) from "logout" to "deregister"
client/cmd/logout.go	Renames CLI command to "deregister" with "logout" alias and updates output message

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud