Changes

• You'll now be seeing badges with the current and the new version in the web UI (just like the CLI). (Requested by @thomas-mc-work in #71)
• Fixed a bug where the extra references specified in the config weren't checked. Just in case anyone was wondering, I never even implemented the code 😆. Thank you @luizkowalski for reporting this! (#81)
• For Chrome Android users who happened to be using Cup's web UI in dark mode and saw that the browser UI did not match, I've set the color-scheme meta tag to fix the issue.