Target Uno for the Behaviors.Animations package

Didn't see it working on Uno, but not sure if related to #119 or issue with caching or something...
Will have to add another sample and see after?

components/Behaviors.Animations/src/MultiTarget.props

@@ -4,6 +4,6 @@
           MultiTarget is a custom property that indicates which target a project is designed to be built for / run on.
           Used to create project references, generate solution files, enable/disable TargetFrameworks, and build nuget packages.
         -->
-        <MultiTarget>uwp;wasdk;</MultiTarget>
+        <MultiTarget>uwp;wasdk;wpf;wasm;linuxgtk;macos;ios;android;</MultiTarget>
     </PropertyGroup>
-</Project>
+</Project>

components/Behaviors.Animations/src/StartAnimationAction.cs

@@ -10,7 +10,7 @@ namespace CommunityToolkit.WinUI.Behaviors;
 /// <summary>
 /// An <see cref="IAction"/> implementation that can trigger a target <see cref="AnimationSet"/> instance.
 /// </summary>
-public sealed class StartAnimationAction : DependencyObject, IAction
+public sealed partial class StartAnimationAction : DependencyObject, IAction
 {
     /// <summary>
     /// Gets or sets the linked <see cref="AnimationSet"/> instance to invoke.

components/Behaviors.Animations/src/StopAnimationAction.cs

@@ -10,7 +10,7 @@ namespace CommunityToolkit.WinUI.Behaviors;
 /// <summary>
 /// An <see cref="IAction"/> implementation that can stop a target <see cref="AnimationSet"/> instance.
 /// </summary>
-public sealed class StopAnimationAction : DependencyObject, IAction
+public sealed partial class StopAnimationAction : DependencyObject, IAction
 {
     /// <summary>
     /// Gets or sets the linked <see cref="AnimationSet"/> instance to stop.