Switch from SDDM to LightDM and fix Wireguard

modules/gui.nix

@@ -5,7 +5,7 @@
   services.xserver.enable = true;
   services.xserver.displayManager = {
     defaultSession = "sway";
-    sddm = {
+    lightdm = {
       enable = true;
       autoLogin = {
         enable = true;
@@ -34,8 +34,6 @@
       kitty
     ];
     extraSessionCommands = ''
-      export MOZ_ENABLE_WAYLAND=1
-      export MOZ_DBUS_REMOTE=1
       export GRIM_DEFAULT_DIR=/home/coolneng/Photos/Screenshots
       export _JAVA_AWT_WM_NONREPARENTING=1
       export QT_QPA_PLATFORM=wayland
@@ -48,21 +46,21 @@
   programs.light.enable = true;
 
   # Blue light filter
+  location = {
+    latitude = 35.89;
+    longitude = -5.32;
+    provider = "manual";
+  };
+
   services.redshift = {
     package = pkgs.redshift-wlr;
     enable = true;
     temperature = {
       day = 6500;
-      night = 5000;
+      night = 5300;
     };
   };
 
-  location = {
-    latitude = 35.89;
-    longitude = -5.32;
-    provider = "manual";
-  };
-
   # Bar
   programs.waybar.enable = true;