Llamafile updates

[CyanideByte]

Describe the changes you have made:

• Updated links to a bunch of models that migrated from jartine to mozilla
• Used Q4_K_M where possible
• Added Gemma-2 models
• Added moondream2
• Updated Mistral-7B to v0.3
• Updated Llama-3 to Llama-3.1
• Updated Phi-2 to Phi-3

Reference any relevant issues (e.g. "Fixes #000"):

Pre-Submission Checklist (optional but appreciated):

• I have included relevant documentation updates (stored in /docs)
• I have read docs/CONTRIBUTING.md
• I have read docs/ROADMAP.md

OS Tests (optional but appreciated):

• Tested on Windows
• Tested on MacOS
• Tested on Linux

[KillianLucas]

👑. Great work as always @CyanideByte, merging now! llamafile is getting so, so exciting.