fix(model_manager): detect Flux 2 Klein LoRAs in Kohya format with transformer-only keys#8938

lstein merged 4 commits intoinvoke-ai:maininvoke-ai/InvokeAI:mainfrom

Pfannkuchensack:fix/flux2-kohya-transformer-only-lora-detectionPfannkuchensack/InvokeAI:fix/flux2-kohya-transformer-only-lora-detectionCopy head branch name to clipboard