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/Views/MailRenderingPage.xaml.cs

@@ -96,7 +96,8 @@ namespace Wino.Views
             }
             else
             {
-                await ExecuteScriptFunctionAsync("RenderHTML", htmlBody);
+                var shouldLinkifyText = ViewModel.CurrentRenderModel?.MailRenderingOptions?.RenderPlaintextLinks ?? true;
+                await ExecuteScriptFunctionAsync("RenderHTML", htmlBody, shouldLinkifyText);
             }
 
             isRenderingInProgress = false;