Replaces the detail-panel container selector with the existing "Parent
Container" dropdown in the edit modal (double-click). The selector now
shows for any node that is nested in — or can nest into — a container_mode
node, not just lxc/vm/docker_container, so a dragged-in node can be
re-targeted or detached ("None") from the modal.
- NodeModal: container_mode candidates count as valid parents; selector
shown for nested nodes; submit/type-change keep valid container parents
- App: pass container_mode in parentCandidates
- revert detail-panel selector + setNodeParent store action (updateNode
already handles parent attach/detach)
ha-relevant: yes
Pouzor
f082c295fd