Truncate long value stream analytics names in the stage list

What does this MR do?

As part of #35823 (closed) this MR ensures we truncate long stage names.

This closes #207054 (closed)

• Adds .text-truncate utility
• Adds tooltip for stages with truncated text

Testing

You will need to enable the :customizable_cycle_analytics feature flag

1. Navigate to http://localhost:3001/-/analytics/value_stream_analytics
2. Select a group
3. Click the Add a stage button
4. Create a stage with a really long stage name
5. After the table refreshes the stage should appear in the list, truncated and with a tooltip

Screenshots

Before	After

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team

Closes #207054 (closed)