fix: use pcmanfm instead of pcmanfm-qt

PCManFM-Qt does not properly pick up the system theme.

home/gui/default.nix

@@ -28,7 +28,7 @@ in
         ferdium
         xournalpp
         signal-desktop
-        lxqt.pcmanfm-qt
+        pcmanfm
         wl-clipboard
         # Extra fonts
         noto-fonts-cjk-sans # Chinese, Japanese and Korean characters

system/gui/default.nix

@@ -73,6 +73,8 @@ in
         };
         # Dbus
         dbus.enable = true;
+        # Virtual Filesystem (for PCManFM)
+        gvfs.enable = true;
       };
       xdg.portal = {
         # XDG portals