Refactor directories, add gemma experiment

mlx/lora/.gitignore

mlx/lora/data/.gitignore

mlx/lora/data/editors/debug.txt

mlx/lora/data/editors/editors.csv

mlx/lora/data/editors/test.jsonl

mlx/lora/data/editors/train.jsonl

mlx/lora/data/editors/valid.jsonl

mlx/lora/data/editors/website-data/A&R.txt

mlx/lora/data/editors/website-data/AG.txt

mlx/lora/data/editors/website-data/AL.txt

mlx/lora/data/editors/website-data/ANA-ZAR.txt

mlx/lora/data/editors/website-data/APR.txt

mlx/lora/data/editors/website-data/ARIEL.txt

mlx/lora/data/editors/website-data/ARSP.txt

mlx/lora/data/editors/website-data/ASR.txt

mlx/lora/data/editors/website-data/AUR.txt

mlx/lora/data/editors/website-data/AVR.txt

mlx/lora/data/editors/website-data/AW-Prax.txt

mlx/lora/data/editors/website-data/AbfallR.txt

mlx/lora/data/editors/website-data/AcP.txt