Add helper for displaying relative block confirmation count

[Chucks1093]

Summary
Transaction confirmations are shown as a raw block count with no context for what constitutes a confirmed transaction. A small display helper that maps block counts to a human-readable confirmation status gives users clearer feedback.

Scope

• add a helper that maps a raw block confirmation count to a labeled status such as pending, confirming, or confirmed
• apply the helper to the transaction row or detail view where block count is displayed
• ensure the thresholds are defined as constants rather than inline magic numbers

Acceptance Criteria

• block confirmation counts are displayed with a human-readable status label
• the thresholds are defined as named constants
• the raw count remains accessible as a tooltip or secondary label

Contributor coordination: if you pick this up, reach out in Telegram for updates or clarification: https://t.me/accesslayerorg

[covenantalade]

@covenantalade has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Let me work on this

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[drips-wave]

Congratulations, @covenantalade! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

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