Refactor activation handling and introduce entity system

Added new `ActivationHandler` class for folder initialization.
Added `ProjectService` class for project-related operations.
Added `Ghost.Entities` project with entity management classes.
Added `EngineEditorWindow` for enhanced user interface.

Changed project files to restructure dependencies and remove unused references.
Changed `ProjectRepository` to use asynchronous methods for improved performance.
Changed data binding in `CreateProjectPage.xaml` and `OpenProjectPage.xaml` to use new data models.
Changed `App.xaml.cs` to utilize the new `ActivationHandler` and include additional services.

Removed `IActivationHandler` interface and integrated its functionality into `ActivationHandler`.
Removed `EditorActivationHandler` as its functionality was merged into `ActivationHandler`.

Updated `AssemblyInfo.cs` to include global using directives for entity types.
Updated image assets to reflect visual resource changes.

Ghost.Editor/View/Pages/Landing/OpenProjectPage.xaml

@@ -4,25 +4,57 @@
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-    xmlns:data="using:Ghost.Database.Models.Projects"
+    xmlns:data="using:Ghost.Data.Models"
     xmlns:local="using:Ghost.Editor.View.Pages.Landing"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     mc:Ignorable="d">
 
     <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+        </Grid.RowDefinitions>
+
+        <Grid Grid.Row="0" Margin="16,8">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="200" />
+                <ColumnDefinition Width="200" />
+            </Grid.ColumnDefinitions>
+
+            <TextBlock
+                Grid.Column="0"
+                Margin="12,0,0,0"
+                Style="{StaticResource BodyStrongTextBlockStyle}"
+                Text="Name" />
+            <TextBlock
+                Grid.Column="1"
+                Style="{StaticResource BodyStrongTextBlockStyle}"
+                Text="Last Open" />
+            <TextBlock
+                Grid.Column="2"
+                Style="{StaticResource BodyStrongTextBlockStyle}"
+                Text="Engine Version" />
+        </Grid>
+
         <ListView
             x:Name="ProjectListView"
+            Grid.Row="1"
+            Padding="16"
+            Background="{ThemeResource CardBackgroundFillColorDefaultBrush}"
+            CornerRadius="{StaticResource OverlayCornerRadius}"
             IsItemClickEnabled="True"
             ItemClick="ListView_ItemClick"
             ItemsSource="{x:Bind projects}"
             Visibility="Visible">
             <ListView.ItemTemplate>
                 <DataTemplate x:DataType="data:ProjectInfo">
-                    <Grid>
+                    <Grid Padding="4,8">
                         <Grid.ColumnDefinitions>
                             <ColumnDefinition Width="*" />
-                            <ColumnDefinition Width="Auto" />
-                            <ColumnDefinition Width="Auto" />
+                            <ColumnDefinition Width="200" />
+                            <ColumnDefinition Width="100" />
+                            <ColumnDefinition Width="100" />
                         </Grid.ColumnDefinitions>
 
                         <Grid Grid.Column="0">
@@ -37,12 +69,28 @@
                                 Text="{x:Bind Name}" />
                             <TextBlock
                                 Grid.Row="1"
-                                Style="{StaticResource BodyTextBlockStyle}"
+                                Foreground="{ThemeResource TextFillColorSecondaryBrush}"
+                                Style="{StaticResource CaptionTextBlockStyle}"
                                 Text="{x:Bind Path}" />
                         </Grid>
 
-                        <TextBlock Grid.Column="1" Text="{x:Bind LastOpened}" />
-                        <TextBlock Grid.Column="2" Text="{x:Bind EngineVersion}" />
+                        <TextBlock
+                            Grid.Column="1"
+                            Margin="16,4"
+                            VerticalAlignment="Center"
+                            Text="{x:Bind LastOpened}" />
+                        <TextBlock
+                            Grid.Column="2"
+                            Margin="16,4"
+                            VerticalAlignment="Center"
+                            Text="{x:Bind EngineVersion}" />
+                        <Button
+                            Grid.Column="3"
+                            HorizontalAlignment="Right"
+                            Background="Transparent"
+                            BorderThickness="0">
+                            <FontIcon Glyph="&#xE712;" />
+                        </Button>
                     </Grid>
                 </DataTemplate>
             </ListView.ItemTemplate>