chore: fix some outdated todos

common/overlays/default.nix

@@ -1,6 +1,5 @@
 {nixpkgs-wayland, ...} @ inputs: [
   (import ./dracula-theme inputs)
-  (import ./plymouth inputs)
   (import ./spotifywm inputs)
   (import ./squeekboard)
 

common/overlays/plymouth/default.nix

@@ -1,6 +0,0 @@
-{plymouth-src, ...}: (final: prev: {
-  plymouth = prev.plymouth.overrideAttrs (o: {
-    version = plymouth-src.rev;
-    src = plymouth-src;
-  });
-})

home/theme.nix

@@ -39,7 +39,7 @@ in {
 
   home.packages = with pkgs; [
     libsForQt5.qtstyleplugin-kvantum
-    qt6Packages.qtstyleplugin-kvantum #FIXME: doesn't work with qt6ct
+    qt6Packages.qtstyleplugin-kvantum
   ];
   qt = {
     enable = true;
@@ -71,5 +71,6 @@ in {
     "Kvantum/kvantum.kvconfig".text = "[General]\ntheme=Dracula";
 
     "qt5ct/qt5ct.conf".text = qtconf + "kvantum";
+    "qt6ct/qt6ct.conf".text = qtconf + "kvantum";
   };
 }