Refactor project management and enhance architecture

Added a new static class `AssetsPath` for asset management.
Added a new icon file (`icon-256.ico`) for UI representation.
Added new package references to enhance functionality.
Added internals visibility attributes for better testing.
Added a new `EngineEditorViewModel` class for MVVM support.
Added a new `GameObject` class for component management.
Added a new `BitSet` class for efficient bit manipulation.
Added various utility classes to support the new entity system.

Changed the `ID` property in `ProjectInfo` to internal.
Changed the `AddProjectAsync` method to return the created `ProjectInfo`.
Changed the connection string retrieval method to use the new `Command` constant.
Changed the `DataPath` class to use `readonly` fields for folder paths.
Changed the `ActivationHandler` class to use new `DataPath` constants.
Changed the `OpenProjectPage` layout and interaction for better UI.

Updated the target framework to a newer version for compatibility.
Updated the `ProjectService` to use new constants from `DataPath`.
Updated the `World` class to improve entity management.

Refactored the `ProjectRepository` class to encapsulate SQL commands.
Refactored the `Transform` class to use properties for better encapsulation.

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

@@ -15,7 +15,7 @@
             <RowDefinition Height="*" />
         </Grid.RowDefinitions>
 
-        <Grid Grid.Row="0" Margin="16,8">
+        <Grid Grid.Row="0" Margin="16,8,16,16">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="*" />
                 <ColumnDefinition Width="200" />
@@ -40,12 +40,13 @@
         <ListView
             x:Name="ProjectListView"
             Grid.Row="1"
-            Padding="16"
+            Padding="8"
             Background="{ThemeResource CardBackgroundFillColorDefaultBrush}"
             CornerRadius="{StaticResource OverlayCornerRadius}"
             IsItemClickEnabled="True"
             ItemClick="ListView_ItemClick"
             ItemsSource="{x:Bind projects}"
+            SelectionMode="None"
             Visibility="Visible">
             <ListView.ItemTemplate>
                 <DataTemplate x:DataType="data:ProjectInfo">