Order models by name, model provider in "Default Model Aliases"

[sangee2004]

1. Model names that are presented in Default Model Aliases page are sorted by descending order ( Model names are sorted in ascending order in Agent Molde drop down menu).

Expected Behavior:
The Model names should be sorted in ascending order similar to Agent Molde drop down menu.

2. Models from different model providers are not ordered by model providers

Expected Behavior:
Model names should be ordered by model provider (like it is done in Agent Molde drop down menu) .

Related issue that was addressed for model list in Agent - #838