Add padding to iteration status badge in iteration cadence list

What does this MR do and why?

Adding a padding between iteration date attributes and badges in iteration cadence list.

Screenshots or screen recordings

Before	After

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

1. Enable the iteration cadences feature

   Feature.enable(:iteration_cadences)

2. Go to Iterations page for a group

3. Create a new iteration cadence for a group (ex. gitlab-org) and visit All tab in the top menu

Screen_Recording_2021-11-12_at_11.28.26_AM