Many of my favorite Basecamp 5 features are the smallest ones. The features of convenience. The ones that hide until the context is just right, then spring to life, front and center. The little "Hey, something's happening for you right now" reminder/nudge is one of those. Whenever an event you're on is on, or is on in 15 mins or less, you get this little pill at the bottom with a direct link to a Zoom (or whatever service) so you can jump right in. Of course there are other ways to know…