[Suggestion]: Adding a Scroll-To-top Button .

Summary

Please add a "Scroll to Top" button to improve user experience. The button should appear after scrolling down and allow users to quickly return to the top of the page.

Page

No response

Details

I would like to request the addition of a "Scroll to Top" button to the website. This feature would enhance the user experience by allowing users to quickly navigate back to the top of the page without needing to manually scroll up, especially on longer pages.

-->Expected Behavior:

1. A button should appear at the bottom right (or another appropriate location) of the screen after the user has scrolled down a certain distance.

2.Clicking the button should smoothly scroll the user back to the top of the page.

3.The button should have a user-friendly design that fits well with the website's overall theme.

-->Benefits:

1.Improves user navigation and accessibility.
2.Enhances overall user experience, especially for pages with extensive content.

-->Additional Context:

This feature is commonly seen on many modern websites and is appreciated by users for its convenience.

未指定任何頁面、檔案、測試或進入點。先檢查 react.dev 的頁面版面配置，以及現有的按鈕或導覽模式，接著判斷捲動控制項應放置的位置，以及它應如何配合網站主題。完成標準是：捲動後會出現按鈕，能平順地將使用者帶回頂端，並符合網站的設計。