FINERACT-2428: Fix 'acount' typo to 'account' in legacy docs

[Monica-CodingWorld]

Description

This pull request corrects a spelling error in the legacy documentation and comments where the word “acount” was mistakenly used instead of the correct term “account”.

• Corrected the spelling in the legacy apiLive.htm documentation file.
• Updated the typo in an integration test comment.

⚠️ Note: This change is purely cosmetic and does not affect business logic, API behavior, or compiled code. It improves clarity and correctness in documentation only.

Jira ticket: https://issues.apache.org/jira/browse/FINERACT-2428

Checklist

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• Add required Swagger annotation and update API documentation at fineract-provider/src/main/resources/static/legacy-docs/apiLive.htm with details of any API changes
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