[Glitch] Implement adding a user to a list from their profile

Port bb5558de62 to glitch-soc

app/javascript/flavours/glitch/features/account_timeline/components/header.js

@@ -23,6 +23,7 @@ export default class Header extends ImmutablePureComponent {
     onBlockDomain: PropTypes.func.isRequired,
     onUnblockDomain: PropTypes.func.isRequired,
     onEndorseToggle: PropTypes.func.isRequired,
+    onAddToList: PropTypes.func.isRequired,
     hideTabs: PropTypes.bool,
   };
 
@@ -78,6 +79,10 @@ export default class Header extends ImmutablePureComponent {
     this.props.onEndorseToggle(this.props.account);
   }
 
+  handleAddToList = () => {
+    this.props.onAddToList(this.props.account);
+  }
+
   render () {
     const { account, hideTabs } = this.props;
 
@@ -106,6 +111,7 @@ export default class Header extends ImmutablePureComponent {
           onBlockDomain={this.handleBlockDomain}
           onUnblockDomain={this.handleUnblockDomain}
           onEndorseToggle={this.handleEndorseToggle}
+          onAddToList={this.handleAddToList}
         />
 
         {!hideTabs && (