Add customization of storage path

[opa-rudi]

It would be nice if you can specify the storage path in the cloud or on local android system.

[stefan-niedermann]

Notes server app

There are Settings at the bottom left of the Notes app, as in most other apps. Clicking it allows you to adjust the storage path:

Notes Android

Clicking on your profile avatar in the top right, then click Manage accounts, tap the ⚙ icon and choose "Set folder" (or similar wording):

The local storage path can't be adjusted as the Notes Android app does not store the notes as files, but in a database for performance (and other) reasons.

[opa-rudi]

Argh. My fault. Thx! :)