Change 'Download' button to 'Export'

Author: 7zeb

editor.html

@@ -22,7 +22,7 @@
         <button class="button" id="save-btn">Save Project</button>
         </div>
         <div class="nav-right">
-            <button class="button">Download</button>
+            <button class="button">Export</button>
             <button class="button">Share</button>
             <button class="next-button">Next</button>
         </div>