Improve Taglines

[bradflaugher]

All of these taglines could be improved. Also I think the previous disclaimer was better for SEO....

"TranslateTribune is a fully autonomous foreign-language news aggregator; all translations, summaries and article curation are performed by AI"

[bradflaugher]

@ruslanpitula this one is for you, I know the content writers are on this, I'm just tracking it here.

Also worth checking the writing on the app store https://play.google.com/store/apps/details?id=com.inoxoft.translatetribune

[bradflaugher]

Fixed the taglines in index.html in a new pull