fix: enforce mandatory chart name on save and edit (#10482)

* fix: show empty charts as empty in chart list view

* migrate ControlLabel to FormLabel and enforce requred fields

* lint

* reorder buttons

superset-frontend/src/explore/components/PropertiesModal.tsx

@@ -262,18 +262,18 @@ function PropertiesModal({ slice, onHide, onSave }: InternalProps) {
         </Row>
       </Modal.Body>
       <Modal.Footer>
+        <Button type="button" bsSize="sm" onClick={onHide}>
+          {t('Cancel')}
+        </Button>
         <Button
           type="submit"
           bsSize="sm"
           bsStyle="primary"
           className="m-r-5"
-          disabled={!owners || submitting}
+          disabled={!owners || submitting || !name}
         >
           {t('Save')}
         </Button>
-        <Button type="button" bsSize="sm" onClick={onHide}>
-          {t('Cancel')}
-        </Button>
         <Dialog ref={errorDialog} />
       </Modal.Footer>
     </form>