fixed `upload_db` api call

src/services/api-v2.ts

@@ -62,7 +62,11 @@ async function stopSession() {
 }
 
 async function uploadDB(sqliteFile) {
-  return await SessionService.uploadDb({body: {sqlite: sqliteFile}}).catch(errorHandler('Error uploading file'))
+  return await SessionService.uploadDb({
+    headers: {
+      'Content-Type': 'multipart/form-data',
+    }, body: {sqlite: sqliteFile}
+  }).catch(errorHandler('Error uploading file'))
   /*
   const formData = new FormData();
   formData.append('sqlite', sqliteFile);