[$50] Re-enable "Move"

[jmgasper]

@atelomycterus - I ran into a situation where we may need to move some discussion around. We had originally just disabled it here: #117

Can we re-enable and just fix up that popup so it looks a little better please? My bad for not thinking further ahead, thanks.

[jmgasper]

Challenge https://www.topcoder.com/challenges/1643d90a-ef6c-4d98-9aeb-6adee4194049 has been created for this ticket.

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[jmgasper]

Challenge https://www.topcoder.com/challenges/1643d90a-ef6c-4d98-9aeb-6adee4194049 has been assigned to obog.

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[atelomycterus]

@jmgasper Wrote notes about Moving Discussions and re-enabled 'Move'. Please apply PRs:

• Issues-384: re-enabled moving discussions forums-groups-plugin#54
• Issues-384: Fixed Move Discussion popup forums-theme#20
• Issues-384: fixed Move Discussion popup #385
  Thanks!

UI

Added 'Cancel' button for consistency with other popups (Add Category/Invite user and so on)

Permissions in Vanilla

'Garden.Moderation.Manage' is a global Vanilla permission. Use it for moderator/admin roles.
'Groups.Moderation.Manage' is a custom permission added by Groups plugin. Use it for copilot roles. User is allowed to move a group discussion only.

if User has 'Garden.Moderation.Manage'/'Groups.Moderation.Manage' and can edit a discussion then
'Move' should be displayed in the dropdown:

Moving Discussions

The next permissions will be checked after moving confirmation:

• Discussion.Edit permission
• Discussion.Add permission on the target category
  If User isn't allowed to add a discussion to the category then the category is disabled in the category dropdown.
  

'Leave a redirect link'

if 'Leave a redirect link' is checked then a discussion record (type= redirect) is added in Discussion table. It may be required for tracking some discussions. I moved the discussion (id=164) + checked 'redirect link':

Email for a discussion (type=redirect):

Moving content from a category

If you want move content and delete a category:

[jmgasper]

Payment task has been updated: https://www.topcoder.com/challenges/1643d90a-ef6c-4d98-9aeb-6adee4194049
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