Several minor improvements

Some minor details of Panoptikum needed improvement and this week came their time.

• All dates (last modified, publishing date, ..) and the time values of duration are now displayed correctly.

• The podcast page shows the likes, followers and subscribers without login.

• And the charts (Top 10 subscribed Podcasts, Top 5 liked Podcasts) now offer their results ex aequo.

Please report further details that you discover that need improvements. Mail to sonja@panoptikum.social or leave a comment under this post.