(cherry picked from commit 9dbefac95a8b60b93ba7b05fd7bf69b80b395f54)

(cherry picked from commit 813299edd83ace98256b7fc9302f586f0dc2cabc)

Add a new Recent section in the board switcher along with a
All section which like old times display all the available boards.
Recent section lists the recent 5 boards you have visited for a quick
switch.

Fixed users href path being incorrect

Selected data is added into a different array

Changed what is hidden when data is loading

This removes the backlog list & instead creates a modal window that will
list all issues that are not part of a list for easy adding onto the
board

Closes #26205

expand remaining non-explicit eslint-disable blocks and factor out globals when no-undef encountered

Improves documentation

Adds tests

Fix prop validation for objects

Finish tests for environment item

Adds tests for toggle folder function

Environment tests

Adds tests

Need to get working the subscription
Styling updates

Changed how the data is passed into Vue resource

Removed props on main VueJS app instead uses data variables