new repo ui

- copy link button: #1396, #1168, #1668,
- synxtax highlight: #1712, #1549, #1315, #670
- z-index: #1942

routers/repo/view.go

@@ -25,6 +25,7 @@ const (
 
 func Home(ctx *middleware.Context) {
 	ctx.Data["Title"] = ctx.Repo.Repository.Name
+	ctx.Data["RequireHighlightJS"] = true
 
 	branchName := ctx.Repo.BranchName
 	userName := ctx.Repo.Owner.Name