chore(model gallery): add sicariussicariistuff_phi-lthy4

[mudler]

Description

This pull request includes a significant update to the gallery/index.yaml file, adding a new entry for the sicariussicariistuff_phi-lthy4 model. The most important changes include adding the model's metadata, description, and file details.

New model addition:

• Added a new entry for the sicariussicariistuff_phi-lthy4 model, including its name, URL, icon, and multiple URLs for additional resources.
• Included a detailed description highlighting the model's capabilities in roleplay and creative writing, its compact size, and its smart assistant features.
• Specified override parameters and file details, including the filename, SHA256 hash, and URI for the model file.

Notes for Reviewers

Signed commits

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