Both _titleBlock implementations title-cased the slug themselves instead of
calling getAppDisplayName, so the Tools tab read "Run app-specific actions for
Rocketchat" and Services read "the docker compose services that make up
Speedtest".
getAppDisplayName already resolves a slug to the app's declared title through
window.apps. Using it fixes four apps beyond Rocket.Chat:
rocketchat Rocketchat -> Rocket.Chat
speedtest Speedtest -> LibreSpeed
ipinfo Ipinfo -> IPinfo
libreportal_catalog Libreportal Catalog -> LibrePortal Catalog
The slug casing is kept as the fallback for the window.apps-not-loaded-yet case,
which is what the helper does internally anyway.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>