Correct Grid Column Gap Indicator Position

[seanparsons]

Problem:
Column gap controls are off-center when at ≤ 1x zoom levels.

Fix:
Applied the same positioning logic to column gaps, that was already there for row gaps.

Screenshots:
Before:

After:

Commit Details:

• Apply the same positioning for column gaps as was implemented for row gaps.

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]

#14933 Bundle Size — 57.98MiB (~+0.01%).

d489b15(current) vs 916e8b9 master#14928(baseline)

Warning

Bundle contains 70 duplicate packages – View duplicate packages

Bundle metrics   2 changes 1 regression

	Current #14933	Baseline #14928
Initial JS	40.97MiB(+0.01%)	40.96MiB
Initial CSS	0B	0B
Cache Invalidation	18%	0%
Chunks	20	20
Assets	22	22
Modules	4152	4152
Duplicate Modules	213	213
Duplicate Code	27.33%	27.33%
Packages	477	477
Duplicate Packages	70	70

Bundle size by type   2 changes 1 regression 1 improvement

	Current #14933	Baseline #14928
JS	57.98MiB (~+0.01%)	57.97MiB
HTML	7.37KiB (-0.25%)	7.39KiB

Bundle analysis report Branch fix/correct-column-grid-gap-posi... Project dashboard

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