Mention all supported Manyverse platforms

[mplorentz]

The places where Manyverse is mentioned (after clicking Join in app or Follow this user, others?) list "Android, iOS, macOS" as the supported platforms, but Manyverse also supports Windows and Linux. We should mention these too.

[chereseeriepa]

Have submitted a comment in figma about what logos to use

[mplorentz]

@Chardot can you follow up on these Figma comments?

[mplorentz]

@chereseeriepa I see that you changed the download button but the text next to Manyverse still says "Android, iOS, macOS" next to Manyverse which feels incomplete. Can we update that text as well? Maybe we just need to say "All platforms" there.

[chereseeriepa]

Good catch @mplorentz i missed that