fix: handle ctrl+c/d cleanly

Also add newline before pause prompt

src/caelestia/__init__.py

@@ -1,12 +1,16 @@
 from caelestia.parser import parse_args
+from caelestia.utils.io import log
 from caelestia.utils.version import print_version
 
 
 def main() -> None:
-    parser, args = parse_args()
-    if args.version:
-        print_version()
-    elif "cls" in args:
-        args.cls(args).run()
-    else:
-        parser.print_help()
+    try:
+        parser, args = parse_args()
+        if args.version:
+            print_version()
+        elif "cls" in args:
+            args.cls(args).run()
+        else:
+            parser.print_help()
+    except KeyboardInterrupt:
+        log("Exiting...")