text: Title: Chat list scroll bar too short for small number of chats.
  Body: Below is UI when theres only a few chats (pop up menu is difficult to use)
  
  <img width="270" alt="image" src="https://github.com/LAION-AI/Open-Assistant/assets/61619422/5791e699-5b21-4a7b-a820-98e619279c85">
  
  Below is UI when there are a lot of chats (pop up is menu easy to use)
  
  <img width="272" alt="image" src="https://github.com/LAION-AI/Open-Assistant/assets/61619422/28606ee9-52cb-4f64-ba70-479b10d4551c">
  
  I believe the best way to solve this must be providing the chat list some default height, preferably flexible.