make SVG Sendable

Author: swhitty

SwiftDraw/SVG.swift

@@ -38,7 +38,7 @@ import Foundation
 #if canImport(CoreGraphics)
 import CoreGraphics
 
-public struct SVG: Hashable {
+public struct SVG: Hashable, Sendable {
     public private(set) var size: CGSize
 
     // Array of commands that render the image