Code Quality: Re-organize the structure of Files.App.Storage (#17340)

Author: 0x5bfa

src/Files.App.Storage/Storables/FtpStorage/FtpHelpers.cs renamed to src/Files.App.Storage/Ftp/FtpHelpers.cs

@@ -4,7 +4,7 @@
 using Files.Shared.Extensions;
 using FluentFTP;
 
-namespace Files.App.Storage.Storables
+namespace Files.App.Storage
 {
 	internal static class FtpHelpers
 	{

src/Files.App.Storage/Storables/FtpStorage/FtpManager.cs renamed to src/Files.App.Storage/Ftp/FtpManager.cs

@@ -3,7 +3,7 @@
 
 using System.Net;
 
-namespace Files.App.Storage.Storables
+namespace Files.App.Storage
 {
 	public static class FtpManager
 	{

src/Files.App.Storage/Storables/FtpStorage/FtpStorable.cs renamed to src/Files.App.Storage/Ftp/FtpStorable.cs

@@ -3,7 +3,7 @@
 
 using FluentFTP;
 
-namespace Files.App.Storage.Storables
+namespace Files.App.Storage
 {
 	public abstract class FtpStorable : IStorableChild
 	{

src/Files.App.Storage/Storables/FtpStorage/FtpStorageFile.cs renamed to src/Files.App.Storage/Ftp/FtpStorageFile.cs

@@ -3,7 +3,7 @@
 
 using System.IO;
 
-namespace Files.App.Storage.Storables
+namespace Files.App.Storage
 {
 	public sealed class FtpStorageFile : FtpStorable, IChildFile
 	{

src/Files.App.Storage/Storables/FtpStorage/FtpStorageFolder.cs renamed to src/Files.App.Storage/Ftp/FtpStorageFolder.cs

@@ -6,7 +6,7 @@
 using System.IO;
 using System.Runtime.CompilerServices;
 
-namespace Files.App.Storage.Storables
+namespace Files.App.Storage
 {
 	public sealed class FtpStorageFolder : FtpStorable, IModifiableFolder, IChildFolder, IDirectCopy, IDirectMove, IGetFirstByName
 	{

src/Files.App.Storage/Storables/FtpStorage/FtpStorageService.cs renamed to src/Files.App.Storage/Ftp/FtpStorageService.cs

@@ -4,7 +4,7 @@
 using FluentFTP;
 using System.IO;
 
-namespace Files.App.Storage.Storables
+namespace Files.App.Storage
 {
 	/// <inheritdoc cref="IFtpStorageService"/>
 	public sealed class FtpStorageService : IFtpStorageService