Sort notes in Mmm-dd-yyyy format

[SebastianMC]

A sibling / follow up of #151 based on the request in this comment

[SebastianMC]

This was a low-hanging-fruit, a new 2.1.5 has been exposed with this feature.

The relevant pattern to use is \[Mmm-dd-yyyy]

An example sorting spec to capture files and folders with a date suffix in that format:

---
sorting-spec: |
  target-folder: Attachments
  ... \[Mmm-dd-yyyy]
    > a-z
---