[pwa][ux] Improve avatars set

[mk-emeks]

Some of the avatars are a little bit broken, and some of them were not included (from the original sheet) given there won't display properly.

Avatars at: Frases.xlsx

maybe by using different font form them we can fix this! Ref. https://tailwindcss.com/docs/font-family

[santiagomonsech]

It seems that is not a problem of the font family itself, but of it's size and the margin that is defined in the box that contains them