[Frotend] Replacing Pedro Ventura pictures

[filipe-varela]

In means of representing an example in the app, the Pedro Ventura's picture of himself is being used. Although this is useful in terms of helping building the frotend, it isn't ideal since this images should be retrieved form the internet, more conveniently from one of HS's databases (if there is more than one).

Therefore, this issue is to replace those former images with the latter ones, which in case there isn't an y database to be used, a random image from the internet should be used as replacement to represent an API call to cache the image into the device.

It's recommended that to adapt this logic for each scenario, since the Pedro Ventura's image was used in various places of the app. Possibly, the first recommended task is to list every place that this image was used in a future comment in this issue and then proceed with its replacement.