v0.99.8

What's Changed

MR: #497
Full Changelog: v0.99.7...v0.99.8

Addresses:

• #496

Includes:

• #493
• Allow model overrides and aliases to apply when switching models by making singleton ModelOverrides class
• Add "defaults" key to model-overrides underneath which all settings apply to the un-aliased model key
• Change ShowContext tool name to GetLines so its intent is clearer to LLMs
• Unify ReplaceText, InsertText, and DeleteText into a singular EditText tool
• Add clearer instructions for models on how to handle truncated command outputs