ci: add flake update workflow

Also add contributing, funding and issue templates

parser: add kill option to shell
version: fix errors when not on arch

src/caelestia/parser.py

@@ -22,6 +22,7 @@ def parse_args() -> (argparse.ArgumentParser, argparse.Namespace):
     shell_parser.add_argument("-d", "--daemon", action="store_true", help="start the shell detached")
     shell_parser.add_argument("-s", "--show", action="store_true", help="print all shell IPC commands")
     shell_parser.add_argument("-l", "--log", action="store_true", help="print the shell log")
+    shell_parser.add_argument("-k", "--kill", action="store_true", help="kill the shell")
     shell_parser.add_argument("--log-rules", metavar="RULES", help="log rules to apply")
 
     # Create parser for toggle opts