Fixed misplaced end

lua/gemini/init.lua

@@ -112,7 +112,6 @@ local function update_chat_window(new_content)
                 end
             end)
         end, { buffer = chat_bufnr, nowait = true })
-    end
 
         -- Make buffer modifiable
         vim.api.nvim_buf_set_option(chat_bufnr, 'modifiable', true)