Bump gong-wpf-dragdrop from 2.3.2 to 2.4.0

Bumps [gong-wpf-dragdrop](https://github.com/punker76/gong-wpf-dragdrop) from 2.3.2 to 2.4.0.
- [Release notes](https://github.com/punker76/gong-wpf-dragdrop/releases)
- [Changelog](https://github.com/punker76/gong-wpf-dragdrop/blob/develop/GitReleaseManager.yaml)
- [Commits](punker76/gong-wpf-dragdrop@2.3.2...2.4.0)

---
updated-dependencies:
- dependency-name: gong-wpf-dragdrop
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

FoliCon/FoliCon.csproj

@@ -47,7 +47,7 @@ dineshsolanki.github.io/folicon/</Description>
     <None Include="..\.editorconfig" Link=".editorconfig" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="gong-wpf-dragdrop" Version="2.3.2" />
+    <PackageReference Include="gong-wpf-dragdrop" Version="2.4.0" />
     <PackageReference Include="HandyControls" Version="3.3.7" />
     <PackageReference Include="IGDB" Version="2.0.1" />
     <PackageReference Include="Jot" Version="2.1.8" />