clean up CLI: remove ASCII banner, use Rich markup mode

Author: shaked-lokits

src/diffuser/__init__.py

@@ -9,15 +9,6 @@
 from diffuser.render import render
 from diffuser.skill import get_skill_content
 
-_BANNER = r"""
- ██████╗ ██╗███████╗███████╗██╗   ██╗███████╗███████╗██████╗
- ██╔══██╗██║██╔════╝██╔════╝██║   ██║██╔════╝██╔════╝██╔══██╗
- ██║  ██║██║█████╗  █████╗  ██║   ██║███████╗█████╗  ██████╔╝
- ██║  ██║██║██╔══╝  ██╔══╝  ██║   ██║╚════██║██╔══╝  ██╔══██╗
- ██████╔╝██║██║     ██║     ╚██████╔╝███████║███████╗██║  ██║
- ╚═════╝ ╚═╝╚═╝     ╚═╝      ╚═════╝ ╚══════╝╚══════╝╚═╝  ╚═╝
-"""
-
 
 def _version_callback(value: bool) -> None:
     if value:
@@ -28,7 +19,8 @@ def _version_callback(value: bool) -> None:
 
 
 app = typer.Typer(
-    help=_BANNER + "\n CriticMarkup viewer for the terminal.",
+    rich_markup_mode="rich",
+    help="[bold]CriticMarkup[/bold] viewer for the terminal.",
     epilog="Made by Shaked Lokits. https://github.com/shakedlokits/diffuser",
     no_args_is_help=True,
 )