Remove unused js class [RUN ALL RSPEC] [RUN AS-IF-FOSS]

What does this MR do?

Remove unused js class

This change removes the class js-title-container from the breadcrumbs.

This js-* class is not used except for a single quarantined test. This change also updates the test when it is taken out of quarantine it still passes.

• Added a testid that is more semantic: data-testid="breadcrumb-links"
• Replaced the occurrence of .js-title-container with this
• Update the feature spec that depended on the CSS class .breadcrumb-links

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Does this MR meet the acceptance criteria?

Conformity

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