chore: Expand single item lists and attribute sets

These aren't collapsed by nix fmt anymore.

example/configuration.nix

@@ -20,7 +20,9 @@ in
 
   home-manager.sharedModules =
     attrValues nix-config.homeModules
-    ++ singleton { programs.btop.enable = true; };
+    ++ singleton {
+      programs.btop.enable = true;
+    };
 
   environment.systemPackages = attrValues {
     inherit (nix-config.packages.${pkgs.system}) webp-thumbnailer;

flake.nix

@@ -96,7 +96,9 @@
             };
 
             modules = phoneModules ++ [
-              (import "${mobile-nixos}/lib/configuration.nix" { device = "pine64-pinephone"; })
+              (import "${mobile-nixos}/lib/configuration.nix" {
+                device = "pine64-pinephone";
+              })
 
               {
                 mobile.beautification = {

home/ironbar.nix

@@ -74,7 +74,9 @@ in
           type = "clock";
           format = "%x（%a）%R";
         }
-        { type = "notifications"; }
+        {
+          type = "notifications";
+        }
       ];
     };
 

home/librewolf.nix

@@ -15,7 +15,9 @@ in
   programs.librewolf = {
     enable = true;
 
-    package = pkgs.librewolf.override { cfg.speechSynthesisSupport = false; };
+    package = pkgs.librewolf.override {
+      cfg.speechSynthesisSupport = false;
+    };
 
     profiles.default = {
       extensions = with firefox-addons.packages.${pkgs.system}; [

home/udiskie.nix

@@ -1 +1,3 @@
-{ services.udiskie.enable = true; }
+{
+  services.udiskie.enable = true;
+}

modules/system.nix

@@ -263,8 +263,14 @@ in
 
       postgresql = mkIf postgres {
         enable = true;
-        ensureUsers = singleton { name = username; };
+
-        ensureDatabases = [ username ];
+        ensureUsers = singleton {
+          name = username;
+        };
+
+        ensureDatabases = [
+          username
+        ];
       };
 
       openssh = {

specializations/dwm.nix

@@ -118,7 +118,9 @@ in
 
         shadowExclude = fadeExclude;
 
-        opacityRules = [ "95:class_g = 'Thunar'" ];
+        opacityRules = [
+          "95:class_g = 'Thunar'"
+        ];
 
         settings = {
           blur = {
@@ -126,9 +128,13 @@ in
             size = 10;
           };
 
-          blur-background-exclude = [ "class_g = 'Nemo-desktop'" ];
+          blur-background-exclude = [
+            "class_g = 'Nemo-desktop'"
+          ];
 
-          clip-shadow-above = [ "class_g = 'dwm'" ];
+          clip-shadow-above = [
+            "class_g = 'dwm'"
+          ];
         };
       };