[BUG] Cursor not visible for some tool types

[hingler]

Bug Description

When using some tool types, a custom cursor does not appear. This can potentially make some tools difficult or confusing to use.

This affects every brush other than the pencil and eraser. Though visual cues are available for these brushes when the mouse is pressed, there is no easy way to gauge where the user cursor is placed before pressing.

Steps to Reproduce

1. Use any tool other than brush or eraser.
2. Move mouse over canvas.

Expected Behavior

Cursor is denoted by some icon on-screen.

Actual Behavior

No such icon is visible.

Environment

• OS: macOS 15
• Browser: Zen browser running Firefox 147.0.3
• Version: latest dev version.

Possible Solution

clean up cursor draw code, use generic fallback icon (ex. a simple crosshair) as a placeholder