docs(best-shell-practices): update instructions and screenshots for Konsole

[Wittusus]

Summary

The default terminal on Bazzite (KDE variant) is Konsole, not Ptyxis. This PR corrects the documentation to reflect that.

Changes

• Replace references to Ptyxis with Konsole throughout the page
• Update navigation instructions to match Konsole's UI (hamburger menu → Settings → Configure Konsole → Profiles)
• Update the command field description to match Konsole's terminology ("Command" box instead of "Use Custom Command")
• Replace both screenshots with up-to-date ones showing Konsole

Testing

Verified locally with `just mkdocs serve`."

[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates the 'Best Shell Practices' documentation to align with the actual default terminal environment provided by Bazzite. By correcting the terminal name, navigation paths, and visual aids, the documentation now provides accurate guidance for users looking to configure their shell settings.

Highlights

• Terminal Documentation Update: Updated the documentation to correctly identify Konsole as the default terminal for Bazzite instead of Ptyxis.
• UI Navigation Instructions: Revised the configuration steps to accurately reflect the Konsole menu structure and settings interface.
• Visual Assets: Replaced outdated screenshots with new images corresponding to the Konsole terminal interface.

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[gemini-code-assist]

Code Review

This pull request updates the documentation to reflect that Konsole is now the default terminal for Bazzite, replacing Ptyxis. The changes include updated instructions for changing the shell and new screenshots. Feedback was provided regarding a typo in the text, the need to update the corresponding Czech translation for consistency, and a recommendation to host images locally within the repository's image folder using absolute paths and descriptive alt text for better accessibility and robustness.

[Wittusus]

I did the change so the docs follow Bazzite 44 newest changes which removed Ptyxis as the default terminal

[nicknamenamenick]

This is a good change. I might make adjustments to have both examples since GNOME images still ship Ptyxis. I'll review this later when I have more time and it will probably get merged regardless. Thanks!

[Wittusus]

@nicknamenamenick if it's planned for the Gnome version to include Ptyxis in the future, let me know, I can make the adjustments to include both

[nicknamenamenick]

@nicknamenamenick if it's planned for the Gnome version to include Ptyxis in the future, let me know, I can make the adjustments to include both

GNOME images have it now and will probably for the unforeseeable future. Even the upstream Fedora Silverblue uses Ptyxis.

[nicknamenamenick]

I could probably finish this, but only in English since language translations are something I'm not comfortable doing personally.