ai_ckeditor: Add option to show or hide the "AI Writer" status information
## Summary
When enabling the ai_ckeditor submodule and enabling the plugin for the text format, a status information such as "AI Writer: Idle" is shown on every editor. This is provided in a hardcoded way by the AiNetworkStatus.js file.
Some users may not want to see this status information. Therefore, it would be great being able to conveniently show or hide this information via configuration.
## Problem
Making this status information optional improves general UX.
## Proposed solution *(optional)*
Add a configuration option into `ai_ckeditor.settings` and expose it via UI.
## Workaround *(optional)*
Right now I only see a way to hide this information by either patching or adding some custom CSS that hides the div container with a `display: none`.
## Affected modules / components *(optional)*
This affects only ai_ckeditor sub-module, as far as I'm aware of.
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<!-- /label ~"aiAgent" -->
<!-- /label ~"aiApiExplorer" -->
<!-- /label ~"aiAssistantsApi" -->
<!-- /label ~"aiAutomators" -->
<!-- /label ~"aiChatbot" -->
<!-- /label ~"aiContentSuggestions" -->
<!-- /label ~"aiEca" -->
<!-- /label ~"aiExternalModeration" -->
<!-- /label ~"aiLogging" -->
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<!-- /label ~"aiSearch" -->
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<!-- /label ~"aiTranslate" -->
issue