fix: use correct experiment list offset when deleting an experiment [DET-7880]

[julian-determined-ai]

Description

fix: use correct experiment list offset when deleting an experiment DET-7880

Currently, the table offset is not correctly updated when an experiment is deleted. We want to re-calculate the correct offset if the current offset is greater than or equal to the total number of items in the table.

Test Plan

1. Navigate to the experiments list and navigate to the last page of experiments.
2. Delete or Archive all the experiments on the last page.
3. After deleting the last experiment on the last page, the table to automatically show the previously second to last page.

Commentary (optional)

Checklist

• [ ] User-facing API changes need the "User-facing API Change" label.
• [ ] Release notes should be added as a separate file under docs/release-notes/. See Release Note for details.
• [ ] Licenses should be included for new code which was copied and/or modified from any external code.
• [ ] If modifying /webui/react/src/shared/ verify make -C webui/react test-shared passes.

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