[Backport] Fix add-member lightbox form

app/modules/invite-members/lightbox-add-members.jade

@@ -4,7 +4,6 @@ tg-lightbox-close
     tg-suggest-add-members(
         ng-show="!vm.displayContactList"
         contacts="vm.contacts"
-        filtered-contacts="vm.contacts.slice(0,12)"
         on-invite-suggested="vm.inviteSuggested(contact)"
         on-invite-email="vm.inviteEmail(email)"
     )

app/modules/invite-members/suggest-add-members/suggest-add-members.directive.coffee

@@ -18,6 +18,10 @@
 ###
 
 SuggestAddMembersDirective = (lightboxService) ->
+    link = (scope, el, attrs, ctrl) ->
+        scope.$watch "vm.contacts", (contacts) =>
+            if contacts
+                ctrl.filterContacts()
 
     return {
         scope: {},
@@ -26,10 +30,10 @@ SuggestAddMembersDirective = (lightboxService) ->
         controllerAs: "vm",
         bindToController: {
             contacts: '=',
-            filteredContacts: '<',
             onInviteSuggested: '&',
             onInviteEmail: '&'
-        }
+        },
+        link: link
     }
 
 angular.module("taigaAdmin").directive("tgSuggestAddMembers", ["lightboxService", SuggestAddMembersDirective])

app/modules/invite-members/suggest-add-members/suggest-add-members.scss

@@ -67,6 +67,8 @@
     }
 
     .add-member-suggest-avatar {
+        flex-grow: 0;
+        flex-shrink: 0;
         height: 5rem;
         margin: .5rem;
         width: 5rem;