firelink-sh/padder

AI Summary: Optimize the performance of the `pad_right` function for `Vec<T>` in the `padder` crate when the `enable_unsafe` feature is enabled. The current implementation using repeated `.push()` calls is significantly slower than it could be. The task involves replacing this with a more efficient approach using `std::iter::repeat_n` and `collect()`, potentially with additional optimizations based on the size of the padding.