fixed abort export error

Author: ZeroX-DG

app/app-menu.js

@@ -72,7 +72,7 @@ function getMenu (app, mainWindow) {
               buttonLabel: 'Export'
             },
             paths => {
-              if (paths[0]) {
+              if (paths && paths[0]) {
                 const folder = paths[0]
                 mainWindow.webContents.send('snippet:exportAll', folder)
               }

browser/render/layouts/list-and-detail/snippet-detail-multi-file/index.jsx

@@ -73,7 +73,7 @@ export default class SnippetDetailMultiFile extends React.Component {
         properties: ['openDirectory']
       },
       paths => {
-        if (paths[0]) {
+        if (paths && paths[0]) {
           const folder = paths[0]
           exportSnippetAPI(exportSnippet, folder)
           toast.success('Snippet exported!')

browser/render/layouts/list-and-detail/snippet-detail/index.jsx

@@ -70,7 +70,7 @@ export default class SnippetDetail extends React.Component {
         properties: ['openDirectory']
       },
       paths => {
-        if (paths[0]) {
+        if (paths && paths[0]) {
           const folder = paths[0]
           exportSnippetAPI(exportSnippet, folder)
           toast.success('Snippet exported!')

browser/render/layouts/original/snippet-item-multi-files/index.jsx

@@ -81,7 +81,7 @@ export default class SnippetItemMultiFiles extends React.Component {
         properties: ['openDirectory']
       },
       paths => {
-        if (paths[0]) {
+        if (paths && paths[0]) {
           const folder = paths[0]
           exportSnippetAPI(exportSnippet, folder)
           toast.success('Snippet exported!')

browser/render/layouts/original/snippet-item/index.jsx

@@ -151,7 +151,7 @@ export default class SnippetItem extends React.Component {
         properties: ['openDirectory']
       },
       paths => {
-        if (paths[0]) {
+        if (paths && paths[0]) {
           const folder = paths[0]
           exportSnippetAPI(exportSnippet, folder)
           toast.success('Snippet exported!')