Bump MaterialDesignColors from 1.2.7 to 2.0.1 in /Winleafs.Wpf

Bumps [MaterialDesignColors](https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit) from 1.2.7 to 2.0.1.
- [Release notes](https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/releases)
- [Commits](https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Winleafs.Wpf/Winleafs.Wpf.csproj

@@ -32,7 +32,7 @@
       <PackageReference Include="JsonMigrator">
         <Version>1.0.1</Version>
       </PackageReference>
-      <PackageReference Include="MaterialDesignColors" Version="1.2.7" />
+      <PackageReference Include="MaterialDesignColors" Version="2.0.1" />
       <PackageReference Include="MaterialDesignExtensions" Version="3.2.0" />
       <PackageReference Include="MaterialDesignThemes" Version="3.2.0" />
       <PackageReference Include="Newtonsoft.Json">