Use different class than search-input

rustdoc is using search-input class for searches. Using search-input is
breaking rustdoc searches. Use search-input-nav instead of search-input
for search input in navigation.

Author: onur

templates/navigation.hbs

@@ -3,7 +3,7 @@
         <div class="pure-menu pure-menu-horizontal">
           <form action="/search" method="GET" class="landing-search-form-nav">
             {{#unless varsb.show_search_form}}
-            <input class="search-input" name="query" type="text" placeholder="Search"{{#if varss.search_query}} value="{{varss.search_query}}"{{/if}}>
+            <input class="search-input-nav" name="query" type="text" placeholder="Search"{{#if varss.search_query}} value="{{varss.search_query}}"{{/if}}>
             {{/unless}}
           <a href="/" class="pure-menu-heading pure-menu-link"><i class="fa fa-cubes fa-fw"></i> Cratesfyi</a>
           <ul class="pure-menu-list">

templates/style.scss

@@ -96,7 +96,7 @@ div.nav-container {
     }
 
     form.landing-search-form-nav {
-        input.search-input {
+        input.search-input-nav {
             float: right;
             max-width: 200px;
             border: none;
@@ -106,6 +106,9 @@ div.nav-container {
             box-shadow: none;
             height: 38px;
         }
+        input.search-input-nav:focus {
+            outline: unset;
+        }
     }
 }