Add trending links (#16917)

* Add trending links

* Add overriding specific links trendability

* Add link type to preview cards and only trend articles

Change trends review notifications from being sent every 5 minutes to being sent every 2 hours

Change threshold from 5 unique accounts to 15 unique accounts

* Fix tests

app/javascript/mastodon/components/admin/Dimension.js

@@ -13,6 +13,7 @@ export default class Dimension extends React.PureComponent {
     end_at: PropTypes.string.isRequired,
     limit: PropTypes.number.isRequired,
     label: PropTypes.string.isRequired,
+    params: PropTypes.object,
   };
 
   state = {
@@ -21,9 +22,9 @@ export default class Dimension extends React.PureComponent {
   };
 
   componentDidMount () {
-    const { start_at, end_at, dimension, limit } = this.props;
+    const { start_at, end_at, dimension, limit, params } = this.props;
 
-    api().post('/api/v1/admin/dimensions', { keys: [dimension], start_at, end_at, limit }).then(res => {
+    api().post('/api/v1/admin/dimensions', { keys: [dimension], start_at, end_at, limit, [dimension]: params }).then(res => {
       this.setState({
         loading: false,
         data: res.data,