Remove forced lowercase on embeddings endpoint

server.py

@@ -127,7 +127,7 @@ class PromptServer():
         @routes.get("/embeddings")
         def get_embeddings(self):
             embeddings = folder_paths.get_filename_list("embeddings")
-            return web.json_response(list(map(lambda a: os.path.splitext(a)[0].lower(), embeddings)))
+            return web.json_response(list(map(lambda a: os.path.splitext(a)[0], embeddings)))
 
         @routes.get("/extensions")
         async def get_extensions(request):