Fix Incorrect Pagination Links in Microservices When Forwarded Through Gateway

[yhao3]

Description

Fixes #27354

1. Set the server.forward-headers-strategy to FRAMEWORK in application.yml for microservice applications, applicable across all environments.
2. Based on the documentation for ForwardedHeaderUtils, it is recommended to use org.springframework.web.filter.ForwardedHeaderFilter for Spring MVC or org.springframework.web.server.adapter.ForwardedHeaderTransformer to extract information from headers as early as possible and discard them. As a result, I updated the logic for generating pagination HTTP headers by removing the direct usage of ForwardedHeaderUtils.
3. The SpringDocConfiguration is no longer needed since setting server.forward-headers-strategy to FRAMEWORK will automatically handle the parsing of the X-Forwarded-Prefix header.

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