fix: Stop writing Variant Selector 16 on dependsOn emojis - ⛔

[claremacrae]

Description

Don't add an invisible character (Variant Selector 16) to the end of the ⛔ emoji, for dependsOn values.

And remove all Variant Selector 16 except those that are necessary for tests.

Motivation and Context

Fix an issue which was discovered when investigating #2693.

How has this been tested?

• Via automated test
• Via manual exploratory testing

Screenshots (if appropriate)

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)
• Sample vault (prefix: vault - improvements to the Tasks-Demo sample vault)

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