Add support for styleGuideIds in AI Translation methods

[andrii-bodnar]

The Crowdin API exposes an optional styleGuideIds field on the AI Translation request bodies in both Crowdin and Crowdin Enterprise. It is an array of Style Guide identifiers used as context during AI translation. API client libraries should expose styleGuideIds on these requests so consumers can pass style guides via the SDK.

Affected endpoints:

• AI Translate Strings — api.users.ai.translate.strings.post (Enterprise: api.ai.translate.strings.post)
• AI File Translation — api.users.ai.file-translations.post (Enterprise: api.ai.file-translations.post)

References:

• AI Translate Strings
• AI File Translation
• List Style Guides
• Crowdin Enterprise: AI Translate Strings, AI File Translation