Use Popen for spawning games again

src/details_window.py

@@ -18,7 +18,6 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 import os
-import shlex
 from time import time
 
 from gi.repository import Adw, Gio, GLib, Gtk
@@ -71,7 +70,7 @@ class DetailsWindow(Adw.Window):
             self.name.set_text(self.game.name)
             if self.game.developer:
                 self.developer.set_text(self.game.developer)
-            self.executable.set_text(shlex.join(self.game.executable))
+            self.executable.set_text(" ".join(self.game.executable))
             self.apply_button.set_label(_("Apply"))
 
             self.game_cover.new_cover(self.game.get_cover_path())
@@ -130,21 +129,7 @@ class DetailsWindow(Adw.Window):
         final_name = self.name.get_text()
         final_developer = self.developer.get_text()
         final_executable = self.executable.get_text()
-
-        try:
-            # Attempt to parse using shell parsing rules (doesn't verify executable existence).
-            final_executable_split = shlex.split(
-                final_executable, comments=False, posix=True
-            )
-        except ValueError as exception:
-            create_dialog(
-                self,
-                _("Couldn't Add Game")
-                if not self.game
-                else _("Couldn't Apply Preferences"),
-                f'{_("Executable")}: {exception}.',
-            )
-            return
+        final_executable_split = final_executable.split()
 
         if not self.game:
             if final_name == "":