Code/documentation cleanup

Author: ronaldbarendse

src/Umbraco.StorageProviders.AzureBlob/IO/AzureBlobFileSystemOptions.cs

@@ -27,7 +27,7 @@ public class AzureBlobFileSystemOptions
         /// <summary>
         /// The root path of the container.
         /// </summary>
-        public string ContainerRootPath { get; set; } = null!;
+        public string? ContainerRootPath { get; set; }
 
         /// <summary>
         /// The virtual path.

src/Umbraco.StorageProviders.AzureBlob/IO/IAzureBlobFileSystem.cs

@@ -4,15 +4,17 @@
 namespace Umbraco.StorageProviders.AzureBlob.IO
 {
     /// <summary>
-    /// The Azure Blob File System.
+    /// Represents an Azure Blob Storage file system.
     /// </summary>
     public interface IAzureBlobFileSystem : IFileSystem
     {
         /// <summary>
-        /// Get the <see cref="BlobClient"/>.
+        /// Get the <see cref="BlobClient" />.
         /// </summary>
         /// <param name="path">The relative path to the blob.</param>
-        /// <returns>A <see cref="BlobClient"/></returns>
+        /// <returns>
+        /// A <see cref="BlobClient" />.
+        /// </returns>
         BlobClient GetBlobClient(string path);
     }
 }

src/Umbraco.StorageProviders.AzureBlob/Imaging/AzureBlobFileSystemImageCache.cs

@@ -53,10 +53,12 @@ protected AzureBlobFileSystemImageCache(string name, IOptionsMonitor<AzureBlobFi
         {
             var blob = _container.GetBlobClient(_cachePath + key);
 
-            if (await blob.ExistsAsync().ConfigureAwait(false))
-                return new AzureBlobStorageCacheResolver(blob);
+            if (!await blob.ExistsAsync().ConfigureAwait(false))
+            {
+                return null;
+            }
 
-            return null;
+            return new AzureBlobStorageCacheResolver(blob);
         }
 
         /// <inheritdoc />