Expose the border style for the debug bar

[johnpapa]

As per conversation with @aeschli , @chrisdias and @seanmcbreen , here is a list of style settings I'd love to see exposed in VS Code.

Debug bar

Expose the border for the debug bar. I find this helps make it stand out, kinda like the border for peek view.

.vs-dark .monaco-workbench .debug-actions-widget {
  border-top: 1px solid #b15a91;
  border-bottom: 1px solid #b15a91;
}

#38990

[isidorn]

This is a fair feature request.
We accept PRs that fix this. If nobody volunteeres I can look into it end of december
Code pointer https://github.com/Microsoft/vscode/blob/runtime-extensions/src/vs/workbench/parts/debug/browser/debugActionsWidget.ts#L36

[johnpapa]

Looks like th color was exposed. Can We expose all four sides as shown in th image i provided?