Render step name in fault settings and make it editable

[1spyral]

Proposed changes

Closes #5214

• Creates functionality in the KubernetesYamlService to update the display (step) name of a Chaos Fault
• Renders the Chaos Fault's step name in the Fault edit menu to match behaviour in the Experiment Visual Editor
• Add an edit button which allows users to edit the step name from the visual editor, matching functionality available in the YAML editor

Types of changes

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• New feature (non-breaking change which adds functionality)
• Bugfix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices applies)

Checklist

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• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works (if appropriate)
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