[ENHANCEMENT] rename skills for simplicity

[burtenshaw]

This PR renames many of the skills to make them easier to install with the hf cli.

Old Directory	New Directory	New Skill Name	Install
hf-cli	cli	huggingface-cli	hf skills add cli
hugging-face-jobs	jobs	huggingface-jobs	hf skills add jobs
hugging-face-paper-pages	papers	huggingface-papers	hf skills add papers
hugging-face-vision-trainer	vision-trainer	huggingface-vision-trainer	hf skills add vision-trainer
hugging-face-dataset-viewer	datasets	huggingface-datasets	hf skills add datasets
hugging-face-evaluation	community-evals	huggingface-community-evals	hf skills add community-evals
hugging-face-model-trainer	llm-trainer	huggingface-llm-trainer	hf skills add llm-trainer
hugging-face-paper-publisher	paper-publisher	huggingface-paper-publisher	hf skills add paper-publisher
hugging-face-trackio	trackio	huggingface-trackio	hf skills add trackio
huggingface-gradio	gradio	huggingface-gradio	hf skills add gradio
hugging-face-datasets	(deleted)	—	—
hugging-face-tool-builder	(deleted)	—	—
transformers.js	(unchanged)	transformers-js	hf skills add transformers.js

[merveenoyan]

waiting on this to communicate about vision skills 🙌🏻