Limit spin to sync and loading (for #112298)

src/vs/base/browser/ui/codicons/codicon/codicon-modifiers.css

@@ -13,7 +13,7 @@
 	}
 }
 
-.codicon-modifier-spin {
+.codicon-sync.codicon-modifier-spin, .codicon-loading.codicon-modifier-spin{
 	/* Use steps to throttle FPS to reduce CPU usage */
 	animation: codicon-spin 1.5s steps(30) infinite;
 }