better display announcement

src/App.js

@@ -22,6 +22,7 @@ class App extends Component {
     load_config();
     load_attentions();
     window.AS_BACKUP = localStorage['DEFAULT_ALLOW_SEARCH'] ? true : false;
+    window.ANN = localStorage['ANN'];
     window.LAST_ANN = localStorage['LAST_ANN'];
     listen_darkmode(
       { default: undefined, light: false, dark: true }[

src/Flows.css

@@ -391,5 +391,5 @@
 
 .announcement-header {
   text-align: right;
-  margin-bottom: -10px;
+  margin-bottom: -8px;
 }

src/Flows.js

@@ -1324,7 +1324,7 @@ export class Flow extends PureComponent {
     }
     this.state = {
       submode: submode,
-      announcement: null,
+      announcement: window.ANN,
     };
   }
 
@@ -1350,6 +1350,8 @@ export class Flow extends PureComponent {
 
   update_announcement(text) {
     if (text !== this.state.announcement) {
+      window.ANN = text;
+      localStorage['ANN'] = text;
       this.setState({
         announcement: text,
       });