[Feature]: `Search-AzGraph` - Parameter to handle pagination / return all items

### Description of the new feature

Please add logic to handle pagination for `Search-AzGraph` in the cmdlet itself.

Now we have to handle it in code like described here:

*

### Search tags

> So I don't create more duplicates like #27737 😅

* paging

### Proposed implementation details (optional)

Maybe a parameter `-All`, like `Microsoft.Graph` does it?

Start by locating the Search-AzGraph cmdlet and read the Azure Resource Graph pagination guidance linked in the issue. Determine how a parameter such as -All should control pagination, then verify that the cmdlet can return all items rather than requiring callers to implement the documented loop themselves.

Written by the indexing model from the issue text.