[Task] Use display names instead of matrix ids for state events

[manuroe]

Please see and discuss the details in the meta issue.

The app must display user name for %1$@ in:

• "state_event_avatar_url_changed" = "%1$@ changed their avatar";
• "state_event_demoted_to_member" = "%1$@ was demoted to member"; Not used
• "state_event_demoted_to_moderator" = "%1$@ was demoted to moderator"; Not used
• "state_event_promoted_to_administrator" = "%1$@ was promoted to admin"; Not used
• "state_event_promoted_to_moderator" = "%1$@ was promoted to moderator"; Not used
• "state_event_room_avatar_changed" = "%1$@ changed the room avatar";
• "state_event_room_avatar_removed" = "%1$@ removed the room avatar";
• "state_event_room_created" = "%1$@ created the room";
• "state_event_room_invite_accepted" = "%1$@ accepted the invite" We do not have the display name here, only the Id
• "state_event_room_invite_by_you" = "You invited %1$@"; We do not have the display name here, only the Id
• "state_event_room_invite_you" = "%1$@ invited you";
• "state_event_room_join" = "%1$@ joined the room";
• "state_event_room_knock" = "%1$@ requested to join";
• "state_event_room_knock_accepted_by_you" = "%1$@ allowed you to join";
  The value was wrong, I changed it to You allowed %1$@ to join and we do not have the display name here, only the Id
• "state_event_room_knock_denied_by_you" = "You rejected %1$@'s request to join"; We do not have the display name here, only the Id
• "state_event_room_knock_denied_you" = "%1$@ rejected your request to join";
• "state_event_room_knock_retracted" = "%1$@ is no longer interested in joining";
• "state_event_room_leave" = "%1$@ left the room";
• "state_event_room_name_changed" = "%1$@ changed the room name to: %2$@";
• "state_event_room_name_removed" = "%1$@ removed the room name";
• "state_event_room_none" = "%1$@ made no changes";
• "state_event_room_reject" = "%1$@ rejected the invitation"; We do not have the display name here, only the Id
• "state_event_room_topic_changed" = "%1$@ changed the topic to: %2$@";
• "state_event_room_topic_removed" = "%1$@ removed the room topic";
• "state_event_room_unknown_membership_change" = "%1$@ made an unknown change to their membership"; Not used
• "state_event_room_third_party_invite_by_you" = "You sent an invitation to %1$@ to join the room"; We only have the displayName here, but it's an email (?)
• "state_event_room_third_party_revoked_invite_by_you" = "You revoked the invitation for %1$@ to join the room"; We do not have the display name here, only the Id

%1$@ and %2$@ must be user names in:

• "state_event_room_invite" = "%1$@ invited %2$@"; We do not have the display name for %2 here, only the Id
• "state_event_room_knock_accepted" = "%1$@ allowed %2$@ to join"; We do not have the display name for %2 here, only the Id
• "state_event_room_knock_denied" = "%1$@ rejected %2$@'s request to join"; We do not have the display name for %2 here, only the Id
• "state_event_room_third_party_invite" = "%1$@ sent an invitation to %2$@ to join the room"; We only have the displayName for %2 here, but it's an email (?)
• "state_event_room_third_party_revoked_invite" = "%1$@ revoked the invitation for %2$@ to join the room"; We only have the displayName for %2 here, but it's an email (?)

%1$@ must be a matrix id in:

• "state_event_display_name_changed_from" = "%1$@ changed their display name from %2$@ to %3$@";
• "state_event_display_name_removed" = "%1$@ removed their display name (it was %2$@)";
• "state_event_display_name_set" = "%1$@ set their display name to %2$@";
• "state_event_room_ban_by_you" = "You banned %1$@";
• "state_event_room_remove_by_you" = "You removed %1$@";
• "state_event_room_unban_by_you" = "You unbanned %1$@";

%1$@ must be a user name and %2$@ must be a matrix id in:

• "state_event_room_ban" = "%1$@ banned %2$@";
• "state_event_room_remove" = "%1$@ removed %2$@";
• "state_event_room_unban" = "%1$@ unbanned %2$@";

[manuroe]

"state_event_room_invite_accepted" = "%1$@ accepted the invite" We do not have the display name here, only the Id
"state_event_room_invite_by_you" = "You invited %1$@"; We do not have the display name here, only the Id
"state_event_room_invite" = "%1$@ invited %2$@"; We do not have the display name for %2 here, only the Id

@bmarty, I tested the feature on EXA. Those strings are rendered in the app with the user displayname as expected. So, I do not understand your comments in the OP. EXA is fine on them but not EXI. EXI displays them as you described.

"state_event_room_leave" = "%1$@ left the room";

This one displays the user id on both EXA and EXI. EW is fine. The info seems to be in the matrix event.

[manuroe]

The 3 first items in my comment got probably fixed with #2866.