fix: Improve options-path to handle both dir-path and file-path

Author: davidkallesen

src/Atc.CodingRules.Updater.CLI/OptionsHelper.cs

@@ -25,7 +25,11 @@ public static async Task<OptionsFile> CreateDefault(
             return CreateDefaultOptions(projectPath);
         }
 
-        options.Mappings.ResolvePaths(new DirectoryInfo(optionsPath));
+        options.Mappings.ResolvePaths(
+            optionsPath.EndsWith(".json", StringComparison.CurrentCultureIgnoreCase)
+                ? new FileInfo(optionsPath).Directory!
+                : new DirectoryInfo(optionsPath));
+
         return options;
     }
 

src/Atc.CodingRules.Updater/DirectoryBuildPropsHelper.cs

@@ -44,7 +44,7 @@ public static void HandleFile(
 
         try
         {
-            if (!file.Directory!.Exists)
+            if (!Directory.Exists(file.Directory!.FullName))
             {
                 Directory.CreateDirectory(file.Directory.FullName);
             }

src/Atc.CodingRules.Updater/EditorConfigHelper.cs

@@ -37,7 +37,7 @@ public static void HandleFile(
 
         try
         {
-            if (!file.Directory!.Exists)
+            if (!Directory.Exists(file.Directory!.FullName))
             {
                 Directory.CreateDirectory(file.Directory.FullName);
             }

src/Atc.CodingRules.Updater/FileHelper.cs

@@ -90,7 +90,6 @@ public static bool AreFilesEqual(
         }
 
         return true;
-
     }
 
     public static bool ContainsEditorConfigFile(