[Feature]: Add short sample demo for each model on https://applio.org/models

[BornSaint]

Description

that simple

Problem

can't verify how voice sound like

Proposed Solution

using the pth model, create a 3 seconds sentence to convert to audio as an example onsite

Alternatives Considered

...

[Vidalnt]

The problem is that there is no way to host all those files, that's why now the models no longer have a cover page.