Add query param for initial search (#5)

e.g. 61C can link to https://hivemind.eecs.berkeley.edu/?search=hive and enjoy less accidents.

Co-authored-by: Oliver Ni <[email protected]>

js/main.js

@@ -151,9 +151,27 @@ var app = new Vue({
   },
   watch: {
     filteredServers: activateAllClipboards
+  },
+  created() {
+    let search = getQueryParam('search');
+    if (search) {
+      this.search = search;
+    }
   }
 });
 
+function getQueryParam(name) {
+  // Could use URLSearchParams if IE is considered dead
+  // but dumb querystring parsing is also not too bad...
+  var params = window.location.search.substring(1).split('&');
+  for (var i = 0; i < params.length; i++) {
+    var param = params[i].split('=', 2);
+    if (param[0] === name) {
+      return decodeURIComponent(param[1]);
+    }
+  }
+}
+
 function activateAllClipboards() {
   // TODO: Get the timing to work without setTimeout
   setTimeout(function() {