feat: Title Generation Delay

[rb81]

Is your feature request related to a problem? Please describe.
Currently, the auto-title generation happens immediately after the conversation begins. This doesn't always result in a coherent or meaningful title.

Describe the solution you'd like
A setting to delay when the title auto-generates. For example, after n messages.

Describe alternatives you've considered
Manually renaming the conversations, which is a pain.