SimPixel: Set point size in URL parameters

Hello!

Previously, we added a pull request to SimPixel to specify the websocket host as a URL parameter and make it easier to connect.

Can we add a URL parameter for specifying the point size as well?

That point size resets every time the program runs. I can’t figure out what parts of the code affect point size. Could you point me in the right direction? I can make another PR.

Best wishes,

Vinesh