The pipelines table was showing the loading icon
after the user cancelled or retried a pipeline.
This fixes that so the pipeline updates without
removing the table from the DOM.

Removes EE differences for pipeline_details_bundle

Closes gitlab-ee#10093

See merge request gitlab-org/gitlab-ce!26164

Signed-off-by: Rémy Coutable <remy@rymai.me>

When a user clicked on another page in the pipeline page, the following
would happen:

1. PipelinesService.getPipelines() would be called to fetch the new page
2. In the success handler, Poll.restart() would be called
3. This would invoke Poll.makeRequest(), which would fire off a new
request.

To fix this, we introduce a enable(), which will:

1. Update the request data accordingly
2. Clear the old timeout if necessary and start a new timer

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/58095

To reduce code duplication between CE and EE components,
creates a mixin with the common methods for the
graph component