Fix calculation for expiring token badges

What does this MR do and why?

Fix calculation for tagging expiring tokens

In the vue_shared access tokens components, we should tag tokens that are expiring if the expiration happens in less or equal than two weeks (0-14 days, both included). However, currently tokens are tagged if the expiration is less than to weeks. We correct here this one-day offset.

Changelog: fixed

References

Screenshots or screen recordings

No changes except the expiring badge.

How to set up and validate locally

1. Enable the migrate_user_access_tokens_ui feature flag.
2. Go to https://gdk.test:3443/-/user_settings/personal_access_tokens
3. Create a token with an expiry day of 15 days in the future. It should have an active badge.
4. Create a token with an expiry day of 14 days in the future. It should have an expiring badge and it should be listed in the Tokens expiring in 2 weeks card.

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