Issuable list: update styling of list items

What does this MR do and why?

This change de-prioritizes meta information and facilitates orientation in lists:

• Changes the font-size of meta information in issuable lists to sm
• Moves the type icon in front of the item title
• Moves labels to it's own line

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Check a issuable list: http://gdk.test:3000/flightjs/Flight/-/issues

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.