Add Dialog component using native HTML5 dialog element and scrollbar-gutter#41751

Copilot wants to merge 18 commits intov6-devtwbs/bootstrap:v6-devfrom

copilot/fix-cdf3e24a-3313-42be-a73c-fe34d2b3b1c7twbs/bootstrap:copilot/fix-cdf3e24a-3313-42be-a73c-fe34d2b3b1c7Copy head branch name to clipboard