Merge pull request #147 from daniell/master

Create a small gap between feedback replies
Merge branch 'develop_main' into master_main
Remove unused imports
It is possible quit organisations

A member of an organisation can go to a modified version of the delete
view that redirects them back to the organisations list when done.

Translation on the organisations list template has been updated.
A user can't make others leave an organisation

If a user goes to the leave organisations page for any user other than
themseleves, they get a page not found error.
Merge remote-tracking branch 'main/master_main' into develop_main
Merge branch 'develop' into quit_organisation
Fix a spacing issue in the template
Users can delete themselves on delete view

Users can use the CustomOrganisationUserDelete view to delete themselves
from an organisation. This is desirable because the
CustomOrganisationUserLeave view reuses this functionality. If users
access the wrong view, their membership is still deleted but they get a
403 page upon redirect.
Remove a "magic number"

Clarify where the "magic number" 2 in the NoticeType Factory comes from
Fix bug with feedback watchers

This fixes a bug where feedback items kept a user as a watcher when the
left the related organisation which could lead to them continuing to
receive notifications.
Merge pull request #168 from daniell/quit_organisation

Users can quit an organisation (https://aptivate.kanbantool.com/boards/5986-econsensus#tasks-2044213)