Refactor "copy content" button to use new init framework#33773

kerwin612 wants to merge 2 commits intogo-gitea:maingo-gitea/gitea:mainfrom

kerwin612:refactor-initcopycontent-with-registerglobaleventfunckerwin612/gitea:refactor-initcopycontent-with-registerglobaleventfuncCopy head branch name to clipboard