fix: only show Edit tab if editMetadataEnabled is true

[emigun]

Description

If editDatasetEnabled is true but editMetadataEnabled is false the Edit tab still shows.
This PR fixes that.

Changes:

• remove [hidden] attribute
• put both conditions in ngIf

Tests included

• Included for each change/fix?
• Passing? (Merge will not be approved unless this is checked)

Documentation

• swagger documentation updated [required]
• official documentation updated [nice-to-have]

official documentation info

If you have updated the official documentation, please provide PR # and URL of the pages where the updates are included

Backend version

• Does it require a specific version of the backend
• which version of the backend is required:

Summary by Sourcery

Bug Fixes:

• Prevent the Edit tab from being shown when metadata editing is disabled in the application configuration.

[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

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