problem

if the user has not added any llm to reor this is an empty dropdown in chat:

solution

when there are no attached llms, there should be a button instead of the select dropdown to allow user to 'attach llm'. this button should use the commonmodals context to open settings on the llms page.

• this change will require an additional modification to make the llm tab within settings the default one that opens in settings
• it will also require a very small refresh icon next to or below the 'attach llm' button and the dropdown which refreshes the llms config by pulling from electron store