Issue boards UI

## What does this MR do?

UI for issue boards.

## Are there points in the code the reviewer needs to double check?

## Why was this MR needed?

## What are the relevant issue numbers?

-  Issue: #17907
-  Backend MR: !5548
-  Frontend MR: !5554
- Documentation !5713 

## Screenshots (if relevant)

![Screen_Shot_2016-08-17_at_14.06.06](/uploads/e2abed987d2c2d280e8b8034c8949024/Screen_Shot_2016-08-17_at_14.06.06.png)


See merge request !5554

It wasnt testing what it was saying it should be...

removed duplication

Fixed JS tests

Updated some parts based on feedback

Added test for finding lists when limited to type