misc: Abstract repeated logic in markup extensions & move Updater into the base of the Avalonia project.

src/Ryujinx/UI/Controls/ApplicationListView.axaml

@@ -55,14 +55,7 @@
                             VerticalAlignment="Stretch"
                             ClipToBounds="True"
                             CornerRadius="5">
-                            <Grid>
-                                <Grid.ColumnDefinitions>
-                                    <ColumnDefinition Width="Auto" />
-                                    <ColumnDefinition Width="10" />
-                                    <ColumnDefinition Width="*" />
-                                    <ColumnDefinition Width="150" />
-                                    <ColumnDefinition Width="100" />
-                                </Grid.ColumnDefinitions>
+                            <Grid ColumnDefinitions="Auto,10,*,150,100">
                                 <Image
                                     Grid.RowSpan="3"
                                     Grid.Column="0"

src/Ryujinx/UI/ViewModels/MainWindowViewModel.cs

@@ -29,7 +29,6 @@ using Ryujinx.HLE.HOS;
 using Ryujinx.HLE.HOS.Services.Account.Acc;
 using Ryujinx.HLE.UI;
 using Ryujinx.Input.HLE;
-using Ryujinx.Modules;
 using Ryujinx.UI.App.Common;
 using Ryujinx.UI.Common;
 using Ryujinx.UI.Common.Configuration;

src/Ryujinx/UI/Views/Main/MainMenuBarView.axaml.cs

@@ -11,7 +11,6 @@ using Ryujinx.Ava.UI.ViewModels;
 using Ryujinx.Ava.UI.Windows;
 using Ryujinx.Common;
 using Ryujinx.Common.Utilities;
-using Ryujinx.Modules;
 using Ryujinx.UI.App.Common;
 using Ryujinx.UI.Common;
 using Ryujinx.UI.Common.Configuration;

src/Ryujinx/UI/Windows/MainWindow.axaml.cs

@@ -22,7 +22,6 @@ using Ryujinx.HLE.HOS;
 using Ryujinx.HLE.HOS.Services.Account.Acc;
 using Ryujinx.Input.HLE;
 using Ryujinx.Input.SDL2;
-using Ryujinx.Modules;
 using Ryujinx.UI.App.Common;
 using Ryujinx.UI.Common;
 using Ryujinx.UI.Common.Configuration;