fix: handle null ports in Docker container table (#5313)

When Docker API returns `null` for container ports (instead of `[]`),
the Docker management page crashes. Added optional chaining on
`ports?.length` to handle this case.

Fixes #5311

Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>

packages/modals-collection/src/docker/add-docker-app-to-homarr.tsx

@@ -21,7 +21,7 @@ export const AddDockerAppToHomarrModal = createModal<AddDockerAppToHomarrProps>(
     {
       initialValues: {
         containerUrls: innerProps.selectedContainers.map((container) => {
-          if (container.ports[0]) {
+          if (Array.isArray(container.ports) && container.ports[0]) {
             return `http://${container.ports[0].IP}:${container.ports[0].PublicPort}`;
           }