1.6.0

Added

• The Amap search key can be kept in Obsidian's secret storage instead of the
  plugin's settings file, and which one is a setting rather than a decision made
  for you. Secret storage keeps the key out of data.json — so out of sync,
  backups and commits — at the cost of staying on the one device, so each device
  you search from needs it entered once. Plugin settings is the old behaviour:
  one entry covers every device, in plain text.

Changed

• New installs default to secret storage. A key already saved stays where it is
  until you move it: switching stores would otherwise put it somewhere your
  other devices cannot read and break search there without saying so. Switching
  to secret storage carries the key across rather than clearing it; switching
  back does not copy it out, because writing a key to disk in plain text should
  not be a side effect of changing a dropdown.

Full Changelog: 1.5.1...1.6.0