Allow editing of LLM settings from workspace settings

[shatfield4]

Pull Request Type

• ✨ feat
• 🐛 fix
• ♻️ refactor
• 💄 style
• 🔨 chore
• 📝 docs

Relevant Issues

resolves #2834

What is in this change?

• Inside workspace settings, when an LLM is selected for the workspace LLM provider we now allow users to modify the LLM settings directly from the workspace settings
• Applied same logic to the agent LLM settings
• UI tweaks to LLM configuration modal
• Fixes a bug where using the Generic OpenAI provider is set on first setup then the user is unable to modify it again after saving it
• A gear icon appears on the selected provider allowing them to configure the settings from the modal

Additional Information

Developer Validations

• I ran yarn lint from the root of the repo & committed changes
• Relevant documentation has been updated
• I have tested my code functionality
• Docker build succeeds locally