Fix cancel button in the page of project edit not work (#23655)

Before, in project edit page, the cancel button is not work.

https://user-images.githubusercontent.com/33891828/227182731-6478e29f-0e52-48c4-beb0-6a7d1dda6a1d.mov

1. The wrong classname `cancel` was added to the `<a>` tag. That
classname caused the default click event of `<a>` tag to be cancelled.
Because we have the following settings in the global. So I remove the
classname `cancel`.

9be90a5875/web_src/js/features/common-global.js (L325-L327)

2. Another change is that page will redirect to the previous page.

https://user-images.githubusercontent.com/33891828/227187326-c653c6d6-9715-440f-a732-ba0a6f012c81.mov

routers/web/org/projects.go

@@ -245,9 +245,11 @@ func EditProject(ctx *context.Context) {
 		return
 	}
 
+	ctx.Data["projectID"] = p.ID
 	ctx.Data["title"] = p.Title
 	ctx.Data["content"] = p.Description
 	ctx.Data["redirect"] = ctx.FormString("redirect")
+	ctx.Data["HomeLink"] = ctx.ContextUser.HomeLink()
 
 	ctx.HTML(http.StatusOK, tplProjectsNew)
 }