title: @capacitor/filesystem: How to check if a folder/directory exists or not?
body: <p>In my ionic capacitor app, I need to check if a folder exists or not on my device. But I have not found any method in the FileSystem plugin. Although there is a method for reading all the contents inside a directory.</p>
  <p>In my case, at first, I need to check if the directory already exists or not. If it is not found, then I will create the directory.</p>