Bump SharpVectors from 1.7.6 to 1.8.1

Bumps [SharpVectors](https://github.com/ElinamLLC/SharpVectors) from 1.7.6 to 1.8.1.
- [Release notes](https://github.com/ElinamLLC/SharpVectors/releases)
- [Commits](ElinamLLC/SharpVectors@v.1.7.6...v1.8.1)

---
updated-dependencies:
- dependency-name: SharpVectors
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Flow.Launcher/Flow.Launcher.csproj

@@ -97,7 +97,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="PropertyChanged.Fody" Version="3.4.0" />
-    <PackageReference Include="SharpVectors" Version="1.7.6" />
+    <PackageReference Include="SharpVectors" Version="1.8.1" />
     <PackageReference Include="VirtualizingWrapPanel" Version="1.5.7" />
   </ItemGroup>