Rails 7 Bootstrap dropdown 下拉菜单点

参考：https://youtu.be/tSu8xF0A2ek

输入指令：bin/importmap pin bootstrap  如果报错，

可改为：./bin/importmap pin bootstrap

将config/importmap.rb

pin "@popperjs/core", to: "https://ga.jspm.io/npm:@popperjs/core@2.11.6/lib/index.js"

改为

pin "@popperjs/core", to: "https://unpkg.com/@popperjs/core@2.11.6/dist/esm/index.js"