BASH integration: No longer modify .bashrc to load shell integration

I think I have things setup robustly so that the shell integration
is loaded transparently via env vars and the normal bash startup files
are sourced, in the same way that vanilla bash does it. Let's hope I
haven't overlooked something.

kitty/child.py

@@ -196,7 +196,7 @@ class Child:
         allow_remote_control: bool = False
     ):
         self.allow_remote_control = allow_remote_control
-        self.argv = argv
+        self.argv = list(argv)
         if cwd_from is not None:
             try:
                 cwd = cwd_of_process(cwd_from)
@@ -233,7 +233,7 @@ class Child:
             opts = fast_data_types.get_options()
             if 'disabled' not in opts.shell_integration:
                 from .shell_integration import modify_shell_environ
-                modify_shell_environ(self.argv[0], opts, env)
+                modify_shell_environ(opts, env, self.argv)
             env = {k: v for k, v in env.items() if v is not DELETE_ENV_VAR}
         return env