subject was: On the activity tab, push message is always added initially with status "successful" even if fails afterwards

On the activity tab, push message is always added initially with status "successful" even if fails afterwards. This is a bit confusing.

With lfryc we agreed on having a "flag" on the PushInformationObject/MessageHolder that is initiated with the status "pending".

On the UI side, there should be some kind of polling on the activity table to update the data.