Add nobro.app to Workout planners

[mybottles]

Adds nobro.app under Fitness and Health → Workout planners.

It's a workout program tracker built as a static PWA:

• No account, no server. There is no backend at all — the app is plain HTML/CSS/JS served as static files.
• No analytics or telemetry. No third-party scripts, no webfonts, no beacons. The only network requests are to same-origin JSON files (locales and workout presets).
• Data stays local. Program and progress live in localStorage; JSON import/export lets you move or back it up yourself.
• Works fully offline via service worker, and can be selfhosted by copying the directory to any static host.
• Open source, MIT: https://github.com/mybottles/nobro-app

Placed alphabetically before wger. Disclosure: I'm the author.