[API Compatibility] align the loss apis --part (#78811)

* align the loss apis

* fully aligned the loss apis

* rename the param and merge the three decorators into one

* reviewed and improved

* 进一步简化 loss 系列 API 的 PyTorch 兼容方案：把每个 loss API 的 PyTorch 位置布局 与 PyTorch<->Paddle 参数别名 合并到一张 ``LEGACY_POS`` 表中，由 ``legacy_reduction_decorator`` 一次性完成位置 -> 关键字、关键字别名重命名、``size_average/reduce`` → ``reduction`` 的全部转换；同时移除，loss API 上多余的 ``@param_one_alias`` / ``@param_two_alias`` / ``@ParamAliasDecorator`` 装饰器

* simplify logic, refer to kwargs and positional args

* kwargs are popped, positional values are fetched from the list at the indexed slot only when the value is a bool

* mimic the logic of paconvert, one decorator per api.

* fix

* fix per feedback