Use Immutable Record for accounts in Redux state (#26559)

app/javascript/mastodon/reducers/contexts.js

@@ -1,8 +1,8 @@
 import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
 
 import {
-  ACCOUNT_BLOCK_SUCCESS,
-  ACCOUNT_MUTE_SUCCESS,
+  blockAccountSuccess,
+  muteAccountSuccess,
 } from '../actions/accounts';
 import { CONTEXT_FETCH_SUCCESS } from '../actions/statuses';
 import { TIMELINE_DELETE, TIMELINE_UPDATE } from '../actions/timelines';
@@ -92,9 +92,9 @@ const updateContext = (state, status) => {
 
 export default function replies(state = initialState, action) {
   switch(action.type) {
-  case ACCOUNT_BLOCK_SUCCESS:
-  case ACCOUNT_MUTE_SUCCESS:
-    return filterContexts(state, action.relationship, action.statuses);
+  case blockAccountSuccess.type:
+  case muteAccountSuccess.type:
+    return filterContexts(state, action.payload.relationship, action.payload.statuses);
   case CONTEXT_FETCH_SUCCESS:
     return normalizeContext(state, action.id, action.ancestors, action.descendants);
   case TIMELINE_DELETE: