title field now resizes

src/components/menu-bar/menu-bar.css

@@ -37,6 +37,7 @@
     justify-content: flex-start;
     flex-wrap: nowrap;
     align-items: center;
+    flex-grow: 1;
 }
 
 .scratch-logo {
@@ -84,6 +85,11 @@
     background-color: $ui-black-transparent;
 }
 
+.growableMenuBarItem {
+    max-width: 12rem;
+    flex: 1;
+}
+
 .file-group {
     display: flex;
     flex-direction: row;

src/components/menu-bar/menu-bar.jsx

@@ -393,7 +393,7 @@ class MenuBar extends React.Component {
                         <FormattedMessage {...ariaMessages.tutorials} />
                     </div>
                     <Divider className={classNames(styles.divider)} />
-                    <div className={classNames(styles.menuBarItem)}>
+                    <div className={classNames(styles.menuBarItem, styles.growableMenuBarItem)}>
                         <MenuBarItemTooltip
                             enable
                             id="title-field"

src/components/menu-bar/project-title-input.css

@@ -15,6 +15,8 @@ $title-width: 12rem;
     width: $title-width;
     height: auto;
     padding: .5rem;
+    flex-grow: 1;
+    width: 2rem;
 }
 
 .title-field {