Add note to the LED brightness page saying that current UHK versions are not backlit. Also include spacing-bootstrap-3

packages/uhk-web/package.json

@@ -78,6 +78,7 @@
   },
   "dependencies": {
     "classlist.js": "1.1.20150312",
-    "file-saver": "1.3.3"
+    "file-saver": "1.3.3",
+    "spacing-bootstrap-3": "^1.0.0"
   }
 }

packages/uhk-web/src/app/components/device/led-brightness/led-brightness.component.html

@@ -29,7 +29,7 @@
 <div class="row led-setting">
     <div class="col-xs-12 col-md-6">
         <slider-wrapper
-            label="Key backlight brightness"
+            label="Key backlight brightness <span class='text-muted pl-1'>Please note that current UHK versions are not backlit.</span>"
             [min]="0"
             [max]="255"
             [step]="1"

packages/uhk-web/src/app/components/slider-wrapper/slider-wrapper.component.html

@@ -1,5 +1,5 @@
 <label *ngIf="label">
-    <span>{{label}}</span>
+    <span [innerHtml]="label"></span>
     <icon name="question-circle"
             data-toggle="tooltip"
             [title]="tooltip"

packages/uhk-web/src/styles.scss

@@ -1,4 +1,8 @@
 /* You can add global styles to this file, and also import other style files */
+$grid-gutter-width: 30px;
+$zindex-navbar-fixed: 1030;
+@import '~spacing-bootstrap-3/spacing';
+
 @import './styles/variables';
 @import '~angular-notifier/styles';
 @import '~font-awesome/scss/font-awesome';