VSA filter bar update suggestions while typing

What does this MR do?

• Updates the autocomplete suggestions for each token as you type
• Removes the fetchTokenData action from value stream analytics, this should be handled by each token as needed
• Updates the value stream analytics and code review analytics filter bars to supply a fetchData method for the relevant tokens

Feature flag

You will need to enable the value_stream_analytics_filter_bar to view the filter bar.

Testing instructions

The filter bar requires the value_stream_analytics_filter_bar feature flag and only applies to group level VSA (currently not project level)

1. Navigate to any group ie /gruops/gitlab-org
2. From the left side bar Navigate to Analytics > Value stream analytics
3. Select a project from the dropdown, then the filter bar can be tested
4. Click on the filter bar and select a token,
5. As you type, a query is sent to the relevant endpoint

Note:

• The disabled state for the filter bar isnt correctly reflected, but will be fixed

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

Related to #217943 (closed)