Enforce import order with ESLint (#25096)

app/javascript/mastodon/reducers/contexts.js

@@ -1,10 +1,11 @@
+import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
+
 import {
   ACCOUNT_BLOCK_SUCCESS,
   ACCOUNT_MUTE_SUCCESS,
 } from '../actions/accounts';
 import { CONTEXT_FETCH_SUCCESS } from '../actions/statuses';
 import { TIMELINE_DELETE, TIMELINE_UPDATE } from '../actions/timelines';
-import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
 import { compareId } from '../compare_id';
 
 const initialState = ImmutableMap({