Update private field naming convention

remove unused usings

Author: ardalis

Diff for: .editorconfig

@@ -66,6 +66,13 @@ dotnet_naming_symbols.constant_fields.applicable_kinds            = field
 dotnet_naming_symbols.constant_fields.applicable_accessibilities  = *
 dotnet_naming_symbols.constant_fields.required_modifiers          = const
 tab_width=2
+dotnet_naming_rule.private_members_with_underscore.symbols  = private_fields
+dotnet_naming_rule.private_members_with_underscore.style    = prefix_underscore
+dotnet_naming_rule.private_members_with_underscore.severity = suggestion
+dotnet_naming_symbols.private_fields.applicable_kinds           = field
+dotnet_naming_symbols.private_fields.applicable_accessibilities = private
+dotnet_naming_style.prefix_underscore.capitalization = camel_case
+dotnet_naming_style.prefix_underscore.required_prefix = _
 ###############################
 # C# Coding Conventions       #
 ###############################

Diff for: .vscode/settings.json

@@ -1,6 +1,4 @@
-using System.Collections.Generic;
-using System.Threading.Tasks;
-using Ardalis.Result;
+using Ardalis.Result;
 using Clean.Architecture.Core.ProjectAggregate;
 
 namespace Clean.Architecture.Core.Interfaces;

Diff for: src/Clean.Architecture.Core/Interfaces/IToDoItemSearchService.cs

@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
-using Ardalis.GuardClauses;
-using Ardalis.Result;
+using Ardalis.Result;
 using Clean.Architecture.Core.Interfaces;
 using Clean.Architecture.Core.ProjectAggregate;
 using Clean.Architecture.Core.ProjectAggregate.Specifications;