fix: 'Add All Unknown Status Types' now sorts new statuses by symbol

[claremacrae]

Description

The Tasks-Demo vault has loads of unknown statuses, because of all the sample files for the different supported Themes and CSS Snippet.

I found when clicking Add All Unknown Status Types' that I couldn't see the statuses I was looking for, because the order they were added was seemingly random.

This change uses locale-aware sorting to sort the new statuses by their symbol.

The documentation is updated too.

Motivation and Context

See above.

How has this been tested?

• Updating an existing test.
• Manual testing in the demo vualt.

Screenshots (if appropriate)

Before

After

Types of changes

Changes visible to users:

• Bug fix (prefix: fix - non-breaking change which fixes an issue)
• Documentation (prefix: docs - improvements to any documentation content for users)

Internal changes:

• Tests (prefix: test - additions and improvements to unit tests and the smoke tests)

Checklist

• My code follows the code style of this project and passes yarn run lint.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• My change has adequate Unit Test coverage.

Terms

• My contribution follow this project's contributing guide
• I agree to follow this project's Code of Conduct