Fix typos, grammar, and outdated references in deployment guides

[SihanUdayaratna03]

Purpose

This PR fixes several minor typos, grammar issues, and outdated references across the deployment and configuration guides:

1. configure-hazelcast.md: Corrected description to say log4j2 to match the actual configuration block.
2. configure-tls-termination.md: Removed incorrect hyphen from "no longer".
3. front-with-the-nginx-load-balancer.md: Removed a stray > character that was making a URL malformed.
4. token-persistence.md: Removed an outdated version reference ("5.9.0 onwards") from the 7.1.0 documentation.
5. backup-and-recovery-recommendations.md: Fixed product name capitalization and grammar.

Related PRs

None

Test environment

N/A (Documentation change only)

Security checks

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

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📥 Commits

Reviewing files that changed from the base of the PR and between 4865946 and 059ff60.

📒 Files selected for processing (5)

• en/identity-server/7.1.0/docs/deploy/backup-and-recovery-recommendations.md
• en/identity-server/7.1.0/docs/deploy/configure-hazelcast.md
• en/identity-server/7.1.0/docs/deploy/configure-tls-termination.md
• en/identity-server/7.1.0/docs/deploy/front-with-the-nginx-load-balancer.md
• en/identity-server/7.1.0/docs/deploy/token-persistence.md

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📝 Walkthrough

Walkthrough

This PR applies small documentation corrections across five WSO2 Identity Server 7.1.0 deployment guides, including phrasing/capitalization fixes, an updated Hazelcast logging reference (log4j to log4j2), an "Important" note formatting addition, a wording fix, and a URL syntax correction.

Changes

Documentation Fixes

Layer / File(s)	Summary
Wording and phrasing corrections en/identity-server/7.1.0/docs/deploy/backup-and-recovery-recommendations.md, en/identity-server/7.1.0/docs/deploy/configure-tls-termination.md, en/identity-server/7.1.0/docs/deploy/token-persistence.md	Corrected sentence phrasing, capitalization, and added an "Important" note format along with minor wording fix ("no-longer" to "no longer").
Configuration reference and URL corrections en/identity-server/7.1.0/docs/deploy/configure-hazelcast.md, en/identity-server/7.1.0/docs/deploy/front-with-the-nginx-load-balancer.md	Updated Hazelcast logging reference from log4j to log4j2 with an added clarifying statement, and fixed an extraneous character in an example Nginx URL.

Suggested labels: Team/Identity Server Core

Suggested reviewers: pavinduLakshan, Malith-19

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the PR’s main change: typo, grammar, and outdated reference fixes in deployment guides.
Description check	✅ Passed	The description follows the template and includes purpose, related PRs, test environment, and security checks.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[pavinduLakshan]

why did we remove the IS version here?

[SihanUdayaratna03]

Thanks for pointing that out @pavinduLakshan, I've restored the "5.9.0 onwards" reference and kept just the comma fix. Please take another look when you get a chance

[Malith-19]

Hi @SihanUdayaratna03,
Don't we have similar docs you modified in other IS versions as well. Shall we check as well?

[SihanUdayaratna03]

@Malith-19 Sure, I'll check the other IS versions and raise separate PRs for those

[Malith-19]

Hi @SihanUdayaratna03,

Thanks, meanwhile let's fix the lint failures as well.