🐛 Fixed broken activity feed and click filter

fixes https://github.com/TryGhost/Ghost/issues/15515

- The link relation of a member-click-event was still using the link_id as foreign key instead of redirect_id.
- The members_link_click_events table was renamed to members_click_events, but this change was not reflected in a recent change in the member model (which has the custom filters).

ghost/core/core/server/models/member-click-event.js

@@ -5,7 +5,7 @@ const MemberClickEvent = ghostBookshelf.Model.extend({
     tableName: 'members_click_events',
 
     link() {
-        return this.belongsTo('Redirect', 'link_id');
+        return this.belongsTo('Redirect', 'redirect_id');
     },
 
     member() {

ghost/core/core/server/models/member.js

@@ -100,12 +100,12 @@ const Member = ghostBookshelf.Model.extend({
                 joinFrom: 'member_id'
             },
             clicked_links: {
-                tableName: 'link_redirects',
+                tableName: 'redirects',
                 tableNameAs: 'clicked_links',
                 type: 'manyToMany',
-                joinTable: 'members_link_click_events',
+                joinTable: 'members_click_events',
                 joinFrom: 'member_id',
-                joinTo: 'link_id'
+                joinTo: 'redirect_id'
             },
             emails: {
                 tableName: 'emails',