This PR introduces the preference for the new notification feature. the UI will come in a future PR (probably right after this is merged), we started with the slash command to get something quickly.
adds a slash command to allow the user to configure it.
add methods to set/get the preference for the user
Summary
This PR introduces the preference for the new notification feature. the UI will come in a future PR (probably right after this is merged), we started with the slash command to get something quickly.
Ticket Link
https://mattermost.atlassian.net/browse/MM-58322