Update Model.json (#1005)

* add(mixtral): add model.json for mixtral

* archived some models + update the model.json

* add(model): add pandora 10.7b

* fix(model): update description

* fix(model): pump vers and change the featured model to trinity

* fix(model): archive neuralchat

* fix(model): decapriated all old models

* fix(trinity): add cover image and change description

* fix(trinity): update cover png

* add(pandora): cover image

* fix(pandora): cover image

* add(mixtral): add model.json for mixtral

* archived some models + update the model.json

* add(model): add pandora 10.7b

* fix(model): update description

* fix(model): pump vers and change the featured model to trinity

* fix(model): archive neuralchat

* fix(model): decapriated all old models

* fix(trinity): add cover image and change description

* fix(trinity): update cover png

* add(pandora): cover image

* fix(pandora): cover image

* chore: model desc nits

* fix(models): adjust the size for solars and pandoras

* add(mixtral): description

---------

Co-authored-by: 0xSage <n@pragmatic.vc>