Feature Request: Change positioning of duplicated insights on dashboards

[benHPostHog]

Feature request

Is your feature request related to a problem?

When duplicating an insight that's last in the dashboard order, the duplicated insight appears before the original insight instead of after it. This requires manual reordering of the dashboard layout each time an insight is duplicated, creating unnecessary work when building dashboards.

Describe the solution you'd like

When duplicating an insight, the duplicated version should appear immediately after the original insight in the dashboard layout order, especially when duplicating the last insight in the sequence.

Why This Matters:

• Duplicating insights is a common workflow for building dashboards quickly
• The current behavior disrupts the natural flow of dashboard creation
• Manual reordering after each duplication adds unnecessary steps
• This would improve the efficiency of dashboard creation

Describe alternatives you've considered

Additional context

From: https://posthoghelp.zendesk.com/agent/tickets/24927

Debug info

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