Muted categories should not hide Tracked/Watched topics

[codinghorror (Jeff Atwood)]

There is another topic here from @amiathena that documents a pop up asking what you want to do when you change category tracking state, e.g. Do you want the category mute to be retroactive on all existing topics in that category or not.

Set category notification state historically

Currently, when you change the watching/tracking status of a category, it only applies that status to topics created from that point on. If you watch a category and then a week later realize that’s too much noise and decide to unwatch it, you are still watching each individual topic that was created during that week. Manually unwatching each one individually is unintuitive and time-consuming. There should be an option to apply the status to the entire category, not just new topics.

If the dialog asks, and we need this anyway, then it lets users decide and educates them Just In Time about this feature as well.