minor adjustements on userSearchDropdown

stylesheets/_session_theme_dark_left_pane.scss

@@ -243,6 +243,7 @@ $session-compose-margin: 20px;
     &:hover {
       font-weight: bold;
       color: $session-color-white;
+      background: $session-shade-8;
     }
   }
 }

ts/components/UserSearchResults.tsx

@@ -8,7 +8,7 @@ export type PropsData = {
   contacts: Array<ConversationListItemPropsType>;
   regionCode: string;
   searchTerm: string;
-  selectedContact: Number;
+  selectedContact: number;
   onContactSelected: any;
 };
 

ts/components/session/UserSearchDropdown.tsx

@@ -25,7 +25,7 @@ export class UserSearchDropdown extends React.Component<Props, State> {
     this.handleNavigation = this.handleNavigation.bind(this);
     this.handleContactSelected = this.handleContactSelected.bind(this);
     this.state = {
-      selectedContact: 0,
+      selectedContact: -1,
     };
   }
 
@@ -86,7 +86,7 @@ export class UserSearchDropdown extends React.Component<Props, State> {
   }
 
   public updateSearch(data: string) {
-    this.setState({ selectedContact: 0 });
+    this.setState({ selectedContact: -1 });
     this.props.updateSearch(data);
   }