Add pagination to search results.

Move to shared definition of json requests between client/server.

web/index.html

@@ -37,6 +37,7 @@ iframe {
 }
 .footer {
   background-color: #eee;
+  color: #222;
   position: fixed; 
   bottom: 0;
   left: 0;
@@ -71,6 +72,12 @@ iframe {
     padding: 1.5em;
   }
 }
+input, .input {
+  color: #000;
+}
+input::placeholder, .input::placeholder{
+  color: #555;
+}
 </style>
 </head>