Reorder in grid reparent

[gbalint]

Problem:
We use grid-rearrange-move code after reparenting into a grid to position the element into the target cell.
However, reorder mode of grid-rearrange-move is never activated, so we set explicit gridRow/gridColumn props even when unnecessary.

Fix:

• Run the grid rearrange move commands after the reparent commands
• Add new optional parameter to runGridRearrangeMove called newPathAfterReparent so it knows about the new path (end can use it in the commands)
• Make the code to decide which mode (rearrange or reorder) work even when the target is not originally in the new parent.

Manual Tests:
I hereby swear that:

• I opened a hydrogen project and it loaded
• I could navigate to various routes in Play mode

[github-actions]

Try me

[relativeci]

#14836 Bundle Size — 57.97MiB (~+0.01%).

20527c4(current) vs 916e8b9 master#14833(baseline)

Warning

Bundle contains 70 duplicate packages – View duplicate packages

Bundle metrics   2 changes 1 regression

	Current #14836	Baseline #14833
Initial JS	40.96MiB(~+0.01%)	40.96MiB
Initial CSS	0B	0B
Cache Invalidation	17.99%	17.87%
Chunks	20	20
Assets	22	22
Modules	4153	4153
Duplicate Modules	213	213
Duplicate Code	27.34%	27.34%
Packages	477	477
Duplicate Packages	70	70

Bundle size by type   2 changes 1 regression 1 improvement

	Current #14836	Baseline #14833
JS	57.97MiB (~+0.01%)	57.96MiB
HTML	7.37KiB (-0.25%)	7.39KiB

Bundle analysis report Branch fix/reorder-in-grid-reparent Project dashboard

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