base.html will now request with a query parameter `v=` whose value is the current version of Libreddit. This will cause the browser to request the stylesheet for a specific version of Libreddit, bypassing the cache. A new version of Libreddit will cause the browser to fetch a new stylesheet. Resolves #622. Credit is due to GitHub user @chloekek for offering this solution in the following post: https://github.com/libreddit/libreddit/issues/622#issuecomment-1315961742