Remove sys.exit on errors in kitty adapter

Author: cnschn

pokemonterminal/terminal/adapters/kitty.py

@@ -20,14 +20,12 @@ def change_terminal(path: str):
             run(["kitty", "@", "set-background-image", path], check=True, capture_output=True)
         except CalledProcessError as err:
             print_kitty_error(err)
-            sys.exit(-1)
 
     def clear():
         try:
             run(["kitty", "@", "set-background-image", "none"], check=True, capture_output=True)
         except CalledProcessError as err:
             print_kitty_error(err)
-            sys.exit(-1)
 
     def __str__():
         return "Kitty"