fix: fix the bug of favorite friends hidding (#1104)

* feat: favorite friends divide by different favorite group

* fix: make the update of dividing by favorite groups compatible with previous features

* fix: fix the bug of favorite friends

* fix: fix the bug of favorite friends

* fix: fix the bug of favorite friends hidding

* fix: fix the vipFriendsDivideByGroup dataSource, now it was couputed by others, no longer managed by the add favorite, delete favorite etc handler

* i18n: chinese translation about split favorite friends

* fix: fix the duplicate friend show in a tab

src/mixins/friendsListSidebar.pug

@@ -74,7 +74,7 @@ mixin friendsListSidebar
                         i.el-icon-arrow-right(:class='{ rotate: isVIPFriends }')
                         span(style='margin-left: 5px') {{ $t('side_panel.favorite') }} ― {{ vipFriendsByGroupStatus.length }}
                     div(v-show='isVIPFriends')
-                        template(v-if='isSidebarDivideByFriendGroup && localFavoriteFriendsGroups.length')
+                        template(v-if='isSidebarDivideByFriendGroup')
                             div(v-for='(group, idx) in vipFriendsDivideByGroup' :key='idx')
                                 div(style='margin-bottom: 3px')
                                     span.extra {{ group.displayName }}