Implement clickable plaintext links and dark mode fix (#488)

* Plaintext links are now clickable and fixes dark mode.

- Change `AppxPackageDir` path from `C:\Users\bkaan\Desktop\Packages\` to `$(USERPROFILE)\Desktop\Packages\`, fixes error when building release.
- Plaintext links are now clickable, and match the same subtle style as Windows Mail.
- Remove `!important` from inline styles to allow Dark Reader to properly recolor the element.

* Implement setting for clickable plaintext link

Wino.Mail/Wino.Mail.csproj

@@ -567,6 +567,8 @@
     <Content Include="JS\global.css" />
     <Content Include="JS\libs\jodit.min.css" />
     <Content Include="JS\libs\jodit.min.js" />
+    <Content Include="JS\libs\linkify-element.min.js" />
+    <Content Include="JS\libs\linkify.min.js" />
     <Content Include="JS\reader.html" />
     <Content Include="Assets\ReleaseNotes\190.md" />
     <None Include="Package.StoreAssociation.xml" />