website: fixes/changes

[houtanb]

• make preliminary leaderboard span entire width of card (currently it doesn't stretch as far as the other leaderboard tables)
• add the FRI logo on the explore charts
• explore chart bug fixes
  • truncated model names
  • model name overlapping baseline name (gpt-4 over public)
  • explore chart on mobile
  • gray dot in legend has hover effect (fixed in d66f198)
• smaller hero image? (currently 4mb)
• fix leaderboards on phones
• add logo to lower left of footer (like on FRI site)
• make footer take up less vertical space
  • get rid of Resources column
  • change "Follow us" to just be icons and write horizontally
• Add a card about participating on ForecastBench
• Carousel of major participants; relevant Tweets; basically other people validating FB (see issue Add comments of people who like FB, logos of submitting orgs #154)
• Link to a growing list of papers that cite FB somewhere (to be confirmed before starting work on this)