qt6ct: use adwaita-dark

.config/qt6ct/qt6ct.conf

@@ -1,8 +1,9 @@
 [Appearance]
 color_scheme_path=/usr/share/qt6ct/colors/darker.conf
-custom_palette=true
+custom_palette=false
+icon_theme=breeze-dark
 standard_dialogs=default
-style=Fusion
+style=Adwaita-Dark
 
 [Fonts]
 fixed="Linux Biolinum,12,-1,5,400,0,0,0,0,0,0,0,0,0,0,1"
@@ -24,7 +25,7 @@ underline_shortcut=1
 wheel_scroll_lines=3
 
 [SettingsWindow]
-geometry=@ByteArray(\x1\xd9\xd0\xcb\0\x3\0\0\0\0\0\0\0\0\0\x16\0\0\t\xff\0\0\x5\x9f\0\0\0\0\0\0\0\x16\0\0\t\xff\0\0\x5\x9f\0\0\0\0\0\0\0\0\n\0\0\0\0\0\0\0\0\x16\0\0\t\xff\0\0\x5\x9f)
+geometry=@ByteArray(\x1\xd9\xd0\xcb\0\x3\0\0\0\0\n\0\0\0\x1\x42\0\0\x11\x7f\0\0\x5\x63\0\0\n\0\0\0\x1\x42\0\0\x11\x7f\0\0\x5\x63\0\0\0\x1\0\0\0\0\a\x80\0\0\n\0\0\0\x1\x42\0\0\x11\x7f\0\0\x5\x63)
 
 [Troubleshooting]
 force_raster_widgets=1