Split Recent.controller::action_recent in two classes

Signed-off-by: emanuele <emanuele45@gmail.com>
Split Unread from Recent, created an Unread_Class to separate some logic

Signed-off-by: emanuele <emanuele45@gmail.com>
Removed some unused variables

Signed-off-by: emanuele <emanuele45@gmail.com>