Add download button to also retrieve the required data

### 📝 Description of the feature

This is an idea of @Alberto-DM to help users being able to retrieve everything at once and not first downloading the example, then downloading the required data from ansys/example-data. Indeed, some users in constrained environment would find things much easier if everything was grabbed at once.

### 💡 Steps for implementing the feature

Add a button in the documentation to allow downloading the file + the required data.

### 🔗 Useful links and references

_No response_

Start by locating the documentation page and its existing example download link, then inspect how the required data is retrieved from ansys/example-data. Done means the documentation has a button that downloads the example file together with all required data in one action.

Written by the indexing model from the issue text.