chore(ouput): i don't think we need deepcopy here

Author: cameronr

lua/opencode/ui/output.lua

@@ -191,6 +191,7 @@ end
 ---Get all lines as a table
 ---@return string[]
 function Output:get_lines()
+  -- FIXME: We probably don't need to use deepcopy here since Output is now short lived
   return vim.deepcopy(self.lines)
 end