style: add workaround for periphery false positive

Related to issue peripheryapp/periphery#909

Signed-off-by: Pierre-Yves Lapersonne <[email protected]>

Author: pylapp

DesignToolbox/DesignToolbox/Pages/Tokens/Dimension/Space/SpaceTokenCommonIllustration.swift

@@ -216,7 +216,10 @@ struct SpaceIllustrationIcon: View {
     let asset: Asset?
 
     var body: some View {
-        if let asset {
+        // NOTE: Periphery thinks "asset" is assigned but never used (false positive)
+        // See issue https://github.com/peripheryapp/periphery/issues/909
+        // Keep the "if let asset = asset" workaround and not "if let asset"
+        if let asset = asset {
             Image(decorative: asset.imageName)
                 .resizable()
                 .renderingMode(.template)