Replace example icons with mopro logo

[oskarth]

Problem

Right now the icons are proof of passport based. We should probably replace these with a mopro logo.

From issue

Awesome, thank you! Later on we can replace icons with mopro logo, but for now proof of passport is good :D

Originally posted by @oskarth in https://github.com/oskarth/mopro/issues/111#issuecomment-1996261560

See https://github.com/oskarth/mopro/issues/108