feat: update package info.

src/Ursa.Themes.Semi/Ursa.Themes.Semi.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
-    <Import Project="../Package.props" />
+    <Import Project="../Package.props"/>
 
     <PropertyGroup>
         <TargetFramework>netstandard2.0</TargetFramework>
@@ -10,20 +10,25 @@
         <Version>0.3.0-beta20240316</Version>
         <Authors>IRIHI Technology Co., Ltd.</Authors>
         <PackageId>Irihi.Ursa.Themes.Semi</PackageId>
+        <PackageIcon>irihi.png</PackageIcon>
         <PackageLicenseExpression>MIT</PackageLicenseExpression>
         <PackageProjectUrl>https://github.com/irihitech/Ursa.Avalonia</PackageProjectUrl>
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Avalonia" Version="$(AvaloniaVersion)" />
+        <PackageReference Include="Avalonia" Version="$(AvaloniaVersion)"/>
     </ItemGroup>
 
     <ItemGroup>
-        <ProjectReference Include="..\Ursa\Ursa.csproj" />
+        <ProjectReference Include="..\Ursa\Ursa.csproj"/>
     </ItemGroup>
 
     <ItemGroup>
-      <UpToDateCheckInput Remove="Controls\Skeleton.axaml" />
+        <UpToDateCheckInput Remove="Controls\Skeleton.axaml"/>
+    </ItemGroup>
+
+    <ItemGroup>
+        <None Include="irihi.png" Pack="true" PackagePath=""/>
     </ItemGroup>
 
 </Project>