Refactor project files for improved readability and structure

- Cleaned up whitespace in Directory.Build.props and Directory.Packages.props for consistency.
- Reformatted project file references in PnvPanel.Api.csproj for better clarity.
- Enhanced code readability in various endpoint files by adjusting line breaks and indentation.
- Standardized method signatures and improved formatting in ResultExtensions and multiple endpoint classes for better maintainability.

backend/src/PnvPanel.Application/Admin/Roles/CreateRoleCommandHandler.cs

@@ -4,8 +4,17 @@ using PnvPanel.Application.Common.Models;
 
 namespace PnvPanel.Application.Admin.Roles;
 
-public sealed class CreateRoleCommandHandler(IRoleService roleService) : ICommandHandler<CreateRoleCommand, Result<RoleDto>>
+public sealed class CreateRoleCommandHandler(IRoleService roleService)
+    : ICommandHandler<CreateRoleCommand, Result<RoleDto>>
 {
-    public Task<Result<RoleDto>> Handle(CreateRoleCommand command, CancellationToken cancellationToken)
-        => roleService.CreateRoleAsync(command.Name, command.MaxConfigs, command.MaxIpLimit, cancellationToken);
+    public Task<Result<RoleDto>> Handle(
+        CreateRoleCommand command,
+        CancellationToken cancellationToken
+    ) =>
+        roleService.CreateRoleAsync(
+            command.Name,
+            command.MaxConfigs,
+            command.MaxIpLimit,
+            cancellationToken
+        );
 }