Add support for custom cursor states when painting

[Garanas]

Description

Extends https://github.com/FAForever/fa/pull/6726

We have various different cursors in this game. As an example, when you hover over a tree and you have a unit with the reclaim ability in your selection then you'll see the reclaim cursor.

It would be ideal if we introduce three new cursors to match the status when painting:

• When creating new brush strokes: A paint brush cursor.
• When deleting brush strokes: An eraser cursor.
• When muting an author: No idea what this would be, but it definitely needs to use the standard red circle that other cursors also use to indicate there's consequences.