Frontend: disable selecting text in cards/sidebar/header

Fixes #200

homeassistant/components/frontend/www_static/polymer/cards/state-card.html

@@ -16,6 +16,10 @@
 
       cursor: pointer;
       overflow: hidden;
+
+      -ms-user-select: none;
+      -webkit-user-select: none;
+      -moz-user-select: none;
     }
   </style>
 

homeassistant/components/frontend/www_static/polymer/components/ha-sidebar.html

@@ -19,6 +19,12 @@ Too broken for now.
       background: #fafafa;
       box-shadow: 1px 0 1px rgba(0, 0, 0, 0.1);
       overflow: hidden;
+
+      white-space: nowrap;
+
+      -ms-user-select: none;
+      -webkit-user-select: none;
+      -moz-user-select: none;
     }
 
     /*.sidenav paper-menu {

homeassistant/components/frontend/www_static/polymer/layouts/partial-base.html

@@ -6,6 +6,13 @@
 <link rel='import' href='../bower_components/paper-icon-button/paper-icon-button.html'>
 
 <dom-module id='partial-base'>
+  <style>
+    :host {
+      -ms-user-select: none;
+      -webkit-user-select: none;
+      -moz-user-select: none;
+    }
+  </style>
   <template>
     <paper-scroll-header-panel class='fit'>
       <paper-toolbar>