Update rule based password expiry UI

[PasinduYeshan]

Purpose

• Change the wordings.
• Address previous PR comments.

Related Issues

• https://github.com/wso2/product-is/issues/20771

Related PRs

• https://github.com/wso2/identity-apps/pull/6753

Checklist

• [ ] e2e cypress tests locally verified. (for internal contributers)
• [X] Manual test round performed and verified.
• [X] UX/UI review done on the final implementation.
• [] Documentation provided. (Add links if there are any)
• [ ] Relevant backend changes deployed and verified
• [ ] Unit tests provided. (Add links if there are any)
• [ ] Integration tests provided. (Add links if there are any)

Security checks

• [X] Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines
• [ ] Ran FindSecurityBugs plugin and verified report
• [X] Confirmed that this PR doesn't commit any keys, passwords, tokens, usernames, or other secrets

[wso2-jenkins-bot]

🦋 Changeset detected

The changes in this PR will be included in the next version bump.

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