The feed: posts, code, reactions, and comments

Home is now a feed of everything happening in your groups.

• Posts: ask for help or share a tip, with code blocks highlighted, and spoilers folded until opened.
• Automatic posts: with Share my solves on (off by default), solving a problem from your group's plan posts it, along with finished weeks and plans.
• Reactions and comments: kudos, impressive, helpful, or same here, and threaded replies.