fix: show cosmos pending undelegation

[kaladinlight]

Description

Fix filtering of undelegations to ensure utc seconds are compared against utc seconds.

Issue (if applicable)

closes #7608

Risk

High Risk PRs Require 2 approvals

Low

What protocols, transaction types, wallets or contract interactions might be affected by this PR?

Testing

• Make sure you have a pending undelegation and ensure it is shown in the cosmos staking position overview

Engineering

☝️

Operations

• 🏁 My feature is behind a flag and doesn't require operations testing (yet)

☝️

Screenshots (if applicable)

[NeOMakinG]

Before

After

I confirm

      opportunityData.undelegations.some(undelegation => {
        return dayjs().isBefore(dayjs(undelegation.completionTime).unix())
      })

was evaluating to false