Backend: Adds route for well-known change password URL (#28788)

* Backend: Adds route for well-known change password URL

* Include 'dashboard/new' in backend routes

* Move index route handler registration out of "not logged in views" section

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

pkg/api/user.go

@@ -250,6 +250,11 @@ func ChangeUserPassword(c *models.ReqContext, cmd models.ChangeUserPasswordComma
 	return Success("User password changed")
 }
 
+// redirectToChangePassword handles GET /.well-known/change-password.
+func redirectToChangePassword(c *models.ReqContext) {
+	c.Redirect("/profile/password", 302)
+}
+
 // GET /api/users
 func SearchUsers(c *models.ReqContext) Response {
 	query, err := searchUser(c)