Update Plex activation URL
Update Plex activation URL

Put wildcard in front of `plex.tv` due to newer URLs being `app.plex.tv`
ex47/web-scrobbler,carpet-berlin/web-scrobbler,inverse/web-scrobbler,carpet-berlin/web-scrobbler,galeksandrp/web-scrobbler,inverse/web-scrobbler,usdivad/web-scrobbler,david-sabata/web-scrobbler,fakelbst/Chrome-Last.fm-Scrobbler,alexesprit/web-scrobbler,galeksandrp/web-scrobbler,ex47/web-scrobbler,alexesprit/web-scrobbler,fakelbst/Chrome-Last.fm-Scrobbler,alexsh/web-scrobbler,Paszt/web-scrobbler,david-sabata/web-scrobbler,alexsh/web-scrobbler,Paszt/web-scrobbler,usdivad/web-scrobbler