fix: OBS-729 | Filters: Fix alignment on nested dropdown

[sumitappt]

Checklist

• The PR conforms to DataHub's Contributing Guideline (particularly Commit Message Format)
• Links to related issues (if applicable)
• Tests for the changes have been added/updated (if applicable)
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[sumitappt]

Here is the updated UI

[asikowitz]

Hmm, is there a way you can do this without hard coding the pixel amount? If we ever change the width of the first menu again, we'll have to update this as well. Or could we at least use a constant for the first menu's width, then use that in calculating left here

[sumitappt]

Hmm, is there a way you can do this without hard coding the pixel amount? If we ever change the width of the first menu again, we'll have to update this as well. Or could we at least use a constant for the first menu's width, then use that in calculating left here

Done

[asikowitz]

LGTM