dashboard: add message for sliders in case of no JS

circle/dashboard/templates/dashboard/_resources-sliders.html

@@ -8,6 +8,7 @@
   </div>
   <div class="col-sm-6">
     <input type="text" class="vm-slider cpu-priority-slider"
+     disabled value="{% trans "Enable JS for fancy sliders" %}"
      data-slider="true" data-slider-highlight="true" data-slider-range="10, 100"
      data-slider-values="0, 10, 30, 80, 100" data-slider-snap="true"/>
   </div>
@@ -26,6 +27,7 @@
   </div>
   <div class="col-sm-6">
     <input type="text" class="vm-slider cpu-count-slider"
+     disabled value="{% trans "Enable JS for fancy sliders" %}"
      data-slider="true" data-slider-highlight="true" data-slider-range="0, 10"
      data-slider-step="true" data-slider-snap="true"/>
   </div>
@@ -45,6 +47,7 @@
   </div>
   <div class="col-sm-6">
     <input type="text" class="vm-slider ram-slider" 
+     disabled value="{% trans "Enable JS for fancy sliders" %}"
      data-slider="true" data-slider-highlight="true" data-slider-range="0, 8192"
      data-slider-step="128" data-slider-snap="true"/>
   </div>