ẞ removed from web version

[thlinard]

The charset used to create the web version is too restrictive: it removes the ẞ present in the full version, while this character will soon be a prerequisite for Google Fonts.

Currently it is both a required and a non-required character in de_Latn.textproto, but, to quote @davelab6 (#152):

Alright, I am convinced that, if a user searches for fonts that support German, and then Roboto, Poppins, Lato etc should not come up.

[thlinard]

I guess adding

U+1E9E # LATIN CAPITAL LETTER SHARP S

to https://github.com/googlefonts/roboto-3-classic/blob/main/scripts/web_subset.txt would be enough.