## Summary
Fixes issue when dragging a group that had inner groups when in vue
mode.
When dragging the outer group in Vue mode:
1. getAllNestedItems(selected) returns ALL items: outer group + inner
groups + nodes
2. moveChildNodesInGroupVueMode loops through all items
3. For outer group G1: calls G1.move(delta, true) then
moveGroupChildren(G1, ...)
4. moveGroupChildren calls G2.move(delta) (no skipChildren) - this moves
G2 AND G2's children!
5. Then the loop reaches G2: calls G2.move(delta, true) - moves G2 again
6. Plus moveGroupChildren(G2, ...) processes G2's children again
This PR fixes it by adding `skipChildren=true` to the `move` call.
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7447-fix-inner-groups-being-moved-double-when-moving-outer-group-in-vue-mode-2c86d73d365081ce97abec682f2a8518)
by [Unito](https://www.unito.io)
