address review comments

src/main/preload.ts

@@ -53,7 +53,7 @@ const saveFileToDisk = async (path: string, file: any) => {
 
 const selectRootDirectory = async () => {
     try {
-        return await ipcRenderer.sendSync('select-dir');
+        return await ipcRenderer.invoke('select-dir');
     } catch (e) {
         console.error(e);
         throw e;

src/main/utils/ipcComms.ts

@@ -7,7 +7,7 @@ export default function setupIpcComs(
     tray: Tray,
     mainWindow: BrowserWindow
 ): void {
-    ipcMain.on('select-dir', async (event) => {
+    ipcMain.handle('select-dir', async () => {
         const dialogWindow = new BrowserWindow({
             width: 800,
             height: 600,
@@ -25,7 +25,7 @@ export default function setupIpcComs(
             result.filePaths.length > 0 &&
             result.filePaths[0];
         dialogWindow.close();
-        event.returnValue = dir;
+        return dir;
     });
 
     ipcMain.on('update-tray', (event, args) => {

src/main/utils/upload.ts

@@ -75,7 +75,7 @@ export const setToUploadFiles = (
     if (filePaths && filePaths.length > 0) {
         uploadStatusStore.set('filePaths', filePaths);
     } else {
-        uploadStatusStore.delete('filePaths');
+        uploadStatusStore.set('filePaths', []);
     }
     if (collectionName) {
         uploadStatusStore.set('collectionName', collectionName);