Fix fullscreen mode being offset by website css

dev.html

@@ -10,7 +10,6 @@
     <meta name="keywords" content="xmpp chat webchat converse.js" />
     <link rel="manifest" href="./manifest.json">
     <link rel="shortcut icon" type="image/ico" href="images/favicon.ico"/>
-    <link type="text/css" rel="stylesheet" media="screen" href="dist/website.css" />
     <link type="text/css" rel="stylesheet" media="screen" href="dist/converse.css" />
     <script src="3rdparty/libsignal-protocol.js"></script>
     <script src="dist/converse.js"></script>

src/shared/styles/website.scss

@@ -4,12 +4,11 @@
 @import "bootstrap/scss/maps";
 @import "bootstrap/scss/mixins";
 @import "bootstrap/scss/utilities";
-@import "bootstrap/scss/root";
 
 @import "bootstrap/scss/reboot";
 @import "bootstrap/scss/type";
 @import "bootstrap/scss/images";
-@import "bootstrap/scss/containers";
+// @import "bootstrap/scss/containers";
 // @import "bootstrap/scss/grid";
 // @import "bootstrap/scss/tables";
 // @import "bootstrap/scss/forms";