feat(site): Ask for version name and if it is active when publishing a new version on editor (#6756)

coderd/templateversions.go

@@ -123,6 +123,9 @@ func (api *API) patchTemplateVersion(rw http.ResponseWriter, r *http.Request) {
 	if errors.Is(err, errTemplateVersionNameConflict) {
 		httpapi.Write(ctx, rw, http.StatusBadRequest, codersdk.Response{
 			Message: err.Error(),
+			Validations: []codersdk.ValidationError{
+				{Field: "name", Detail: "Name is already used"},
+			},
 		})
 		return
 	}