file saved alert added

Author: Rahuljagwani

src/toolbarActions/toolbarFunctions.js

@@ -88,8 +88,12 @@ async function saveGraphMLFile(state) {
             const stream = await graph.fileHandle.createWritable();
             await stream.write(getGraphFun(state).saveToFolder());
             await stream.close();
+            // eslint-disable-next-line no-alert
+            alert('File saved Successfully');
         } else if (graph.fileHandle === null) {
             getGraphFun(state).saveWithoutFileHandle();
+            // eslint-disable-next-line no-alert
+            alert('File saved Successfully');
         } else {
             // eslint-disable-next-line no-alert
             alert('Switch to Edge/Chrome!');