fix single selection angle constraint (#2555)

* fix single selection angle constraint

* fix angle for multi selections

* make test more robust for makos

src/components/Toolbar/setAngleLength.tsx

@@ -138,6 +138,10 @@ export async function applyConstraintAngleLength({
         createVariableDeclaration(variableName, valueNode)
       )
       _modifiedAst.body = newBody
+      Object.values(pathToNodeMap).forEach((pathToNode) => {
+        const index = pathToNode.findIndex((a) => a[0] === 'body') + 1
+        pathToNode[index][0] = Number(pathToNode[index][0]) + 1
+      })
     }
     return {
       modifiedAst: _modifiedAst,