Move complex plugins configurations to their own tab

Actual behavior

Actually some plugins that need to have something configured is in the plugins tab, even complex one. This became too crowded and not visually nice nor usefull. Complex configuration should be moved to their own tab in the configuration screen.

Expected behavior

Move the complex configuration to their own plugin tab in the configuration backend :

• SupAnn
• Invitation
• Sinaps
• Dashboard

Benefits

• More clean plugins tab
• More user friendly specialized tabs

Possible Drawbacks

none