Reset image styling for the web-profiler toolbar

I've had issues with the toolbar where the site styling pushes
the toolbar info below the image. This is often because of global
image styling such as applying `display: block` by default.

This fixes the issue by reseting image styling to browser
defaults, which is what the toolbar expects.

src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/toolbar_style.html.twig

@@ -17,6 +17,10 @@
         bottom: 0;
         border-top: 1px solid #bbb;
     }
+    .sf-toolbarreset img {
+        width: auto;
+        display: inline;
+    }
 
     .sf-toolbarreset .hide-button {
         display: block;