FIX: add missing translation (#849)

Author: SamSaffron

config/locales/client.en.yml

@@ -267,6 +267,7 @@ en:
           ai_helper: "AI Helper"
           ai_persona: "Persona (%{persona})"
           ai_summarization: "Summarization"
+          ai_embeddings_semantic_search: "Semantic Search"
         in_use_warning:
           one: "This model is currently used by %{settings}. If misconfigured, the feature won't work as expected."
           other: "This model is currently used by the following: %{settings}. If misconfigured, features won't work as expected. "