• Show an info message to get user started when entering the "ask image" chat UI.
• Click image in chat to see it in full screen.
• Check new release on start up, and show a message if new release is available.
• Only try to re-initialize session once when handling an exception from LLM engine.
• Allow users to paste HF access token and clear it in the settings dialog.
• Disable the stop and reset session button when LLM engine is in the prefill phase.
• Fix a UI layout crash.
• Fix various UI bugs for smaller screens and in dark mode.