refactor: simplify host composition and shared feature config

modules/features/niri/default.nix

@@ -30,6 +30,7 @@ in
       ...
     }:
     let
+      repoTheme = metaLib.repo.theme.kanagawa;
       outputs = lib.mapAttrs (
         _: display:
         {
@@ -41,10 +42,10 @@ in
         // lib.optionalAttrs (display.primary or false) {
           "focus-at-startup" = true;
         }
-        // lib.optionalAttrs (display ? scale) {
+        // lib.optionalAttrs (display.scale != null) {
           inherit (display) scale;
         }
-        // lib.optionalAttrs (display ? mode) {
+        // lib.optionalAttrs (display.mode != null) {
           inherit (display) mode;
         }
       ) config.meta.host.displays;
@@ -81,7 +82,6 @@ in
         spawn-at-startup = [
           { command = [ "xwayland-satellite" ]; }
           { command = [ "noctalia-shell" ]; }
-          { command = [ "qbittorrent" ]; }
         ];
         prefer-no-csd = true;
         hotkey-overlay.skip-at-startup = true;
@@ -106,9 +106,9 @@ in
           border = {
             enable = true;
             width = 3;
-            active.color = "#7E9CD8";
-            inactive.color = "#54546D";
-            urgent.color = "#E82424";
+            active.color = repoTheme.palette.niri.border.active;
+            inactive.color = repoTheme.palette.niri.border.inactive;
+            urgent.color = repoTheme.palette.niri.border.urgent;
           };
         };