Add a keyword search bar to the (admin) settings page

The settings page has over 50 icons, organized by setting category, but it's HARD to remember what settings are called what and in which category. I find myself clicking in 2-10 spots sometimes just to track something down that I've done before.

Example: I want to be able to find all settings that related to "disclosures". There's on settings called Disclosures, but I have to turn it on somewhere else. I want to type "disclosures" into a search bar, and be shown all instances of that word throughout the admin settings.