fix: Vesting display issues

[chefjackson]

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PR-Codex overview

The focus of this PR is to improve the vesting functionality in the IFO feature.

Detailed summary

• Updated the IfoVestingFooter component to handle optional releaseRate.
• Modified calculation logic in IfoVestingCard for rate display.
• Enhanced useFetchVestingData logic for pool live status.
• Added optional salesEndTime prop in IfoProgressStepper.

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