Using Mobile Phone for remote

When in a remote session on the phone it uses touch, I would be great to have a mouse curser like Microsoft RDP has. It would make the ease of use case much more productive.

Start by locating the mobile remote-session interaction in the C#/.NET, Blazor, and SignalR parts of Remotely, then identify how touch input is handled. Define the cursor behavior for phone sessions and verify that remote control remains usable alongside touch input; the issue mentions no files or tests to run.

Written by the indexing model from the issue text.