Remove kicked members or those who left from mentions suggestions

[tomastiminskas]

Filter members that left or were kicked from a tribe from mentions suggestion list.

Base branch: develop: project needs to be compiled and run from develop branch where the latest changes are pushed.

Context

• When typing a message on a tribe and entering @ character followed by a letter, a list of members to tag will show up
• That list is built processing messages in the tribe and getting aliases from them, removing duplicates and old messages.
• Messages are iterated from oldest to most recent and saving aliases and pictures in an array of tuples

Requirements

• We want to remove members that were kicked out or who left the tribe from the members suggestions list
• For that we should check if the message in the iteration is of any of those types (case groupLeave = 15, case groupKick = 16) and if so then remove from the array elements with message.senderPic or message.senderAlias.
• If user joined again after being kicked or left, then a new most recent message will be processed and it will be added again.

Acceptance Criteria

• Prevent old members that were kicked or left the tribe to show up in the mentions suggestions