Create sharp-adults-think.md

.changeset/sharp-adults-think.md

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+---
+"@rocket.chat/meteor": minor
+---
+
+Fixes the departments filter on the omnichannel current chats page by ensuring that the selected department is fetched and 
+added if it was not part of the initial department list. This prevents the filter from becoming blank and avoids potential 
+UX issues.