fixes initial render console warning

Author: Adam Argyle

app/components/vis-bug/vis-bug.element.js

@@ -129,15 +129,15 @@ export default class VisBug extends HTMLElement {
       </ol>
       <ol colors>
         <li class="color" id="foreground" aria-label="Text" aria-description="Change the text color">
-          <input type="color" value="">
+          <input type="color">
           ${Icons.color_text}
         </li>
         <li class="color" id="background" aria-label="Background or Fill" aria-description="Change the background color or fill of svg">
-          <input type="color" value="">
+          <input type="color">
           ${Icons.color_background}
         </li>
         <li class="color" id="border" aria-label="Border or Stroke" aria-description="Change the border color or stroke of svg">
-          <input type="color" value="">
+          <input type="color">
           ${Icons.color_border}
         </li>
       </ol>