Add search box for location to quantities page

templates/ui/quantities.html

@@ -1,6 +1,11 @@
 <!DOCTYPE HTML>
 <html>
     <body>
+        <form action="./quantities">
+            <input type="text" placeholder="Location" name="location" />
+            <input type="submit" />
+        </form>
+        <a href="./quantities">Clear Search</a>
         <table border=1>
             <tr>
                 <th>UPC</th>