[nvim] nvim: actually use fzf extension

.config/nvim/lua/plugin/packer.lua

@@ -64,8 +64,11 @@ return require("packer").startup(function()
             {
                 "nvim-telescope/telescope-fzf-native.nvim",
                 run = "make"
-            }
+            },
         },
+        config = function()
+            require("telescope").load_extension("fzf")
+        end
     }
 
     -- LSP