1.1.0

Fixed a critical issue where input will get stuck after a while of use in tool call

• Added saving and loading chat sessions with /save and /load
• Assistant will now show its messages (if any) while using tools.
• Added back welcome banner and clear console before start
• Fix readme typos (again)
• Removed old gemini script
• Update tool run_shell_command with print_output argument
• Refactor utility: Way better printing for tools