Apollo boards - Refactor adding a list

What does this MR do and why?

Apollo boards - Refactor adding a list

Impact Project/Group issue boards and Epic boards.

Behind :apollo_boards feature flag

Screenshots or screen recordings

Board type	Expected behaviour
Issue boards without a licence - CE	Apollo_boards_-_Add_list_CE
Issue boards with a licence - EE	Apollo_boards_-_Add_list_EE
Epic boards- Requires a license	Epic_boards_apollo_-_Add_list

How to set up and validate locally

1. Turn on :apollo_boards feature flag
2. Visit a board
3. Click Create list button in the top right corner
4. Select options and confirm.

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.

Related to #378888 (closed)