Fix TrainingModule class declaration formatting

[kirklandsign]

Summary: Reformat TrainingModule class declaration to place private constructor on the same line as the class name, with Closeable wrapping to the next line. This follows the standard Kotlin formatting convention.

Differential Revision: D106574405

[pytorch-bot]

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[Copilot]

Pull request overview

This PR adjusts Kotlin formatting for the TrainingModule class declaration in the Android training wrapper to better match standard Kotlin style (placing the private constructor on the same line as the class name and wrapping the Closeable supertype onto the next line).

Changes:

• Reformats the TrainingModule class header to keep class ... private constructor(...) on one line.
• Wraps the : Closeable portion onto a continuation line with consistent indentation.

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