Scott Hanselman recommended using the context instead of the browser object. Browser object creates a new context on each call which is a new process. Obviously we don't want that.
Also added an extra check for a load based on network idle. This will not only ensure things are loaded, but there is a built in 500ms timeout looking for inactivity which will let the font rendering process do it's thing which seems to lag a tad with Chromium.
And while we are at it, preloading the font can't hurt.
* Adding social card infrastructure
* Upgrades doc project to .NET 6
* Adds Playwright
* Changes the console to a web project for Playwright
* Adds social card template
* Added blog content
* Parallelized social image processing
* Updating CI to use .NET 6 for docs build
