Add option on tables to show/hide columns.
Add option in settings to manually check for updates.
Add option in config to toggle github update checks.
Remove the hidden danger zone link to wipe database.
First code for independent notifications (not linked to PlexWatch).
New notifications panel in Settings (many types still untested).
Standardise the parameters sent to current activity.
Remove notifiers we cannot use.
Styling fixes for sync tables.
Tim