Update modules/ROOT/partials/toolbar-button-ids/tinymceai-toolbar-buttons.adoc

Co-authored-by: Millie <millie.macdonald@tiny.cloud>

Author: kemister85

modules/ROOT/partials/toolbar-button-ids/tinymceai-toolbar-buttons.adoc

@@ -2,7 +2,7 @@
 |===
 |Toolbar button identifier |Description
 
-|image:icons-premium/ai-assistant.svg[Chat icon,24px] `+tinymceai-chat+` |Opens the AI Chat sidebar for conversations with the AI assistant.
+|image:icons-premium/ai-assistant.svg[Chat icon,24px] `+tinymceai-chat+` |Opens the AI Chat sidebar for conversations with the AI agent.
 |image:icons/ai-prompt.svg[Quick Actions icon,24px] `+tinymceai-quickactions+` |Opens the Quick Actions menu (improve writing, fix grammar, translate, and similar).
 |image:icons-premium/ai-review.svg[Review icon,24px] `+tinymceai-review+` |Opens the AI Review sidebar for suggested edits and content review.
 |===