benchmark Positron perf and compare it to Electron

[mykmelez]

It'd be useful to benchmark the perf of Positron versus Electron, to get a sense of how they differ, and where we're slow. I'm not sure exactly what kind of perf to measure, but some ideas include: web page rendering in a BrowserWindow, web page rendering in a <webview> element, module loading, and &webview> element creation/insertion.

[brendandahl]

Another thought is startup time. I've seen a few people gripe about electron's startup time.