bug symfony#16377 [WebProfilerBundle] Fix minitoolbar height (rvanlaak)

This PR was merged into the 2.8 branch.

Discussion
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[WebProfilerBundle] Fix minitoolbar height

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

The height of the minimized toolbar icon was a bit off. This change makes sure the icon has the same height as the toolbar itself.

Commits
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0459912 [WebProfilerBundle] Fix minitoolbar height

Author: fabpot

src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/toolbar.css.twig

@@ -2,12 +2,20 @@
     background-color: #222;
     bottom: 0;
     display: none;
-    height: 36px;
-    padding: 5px 6px 0;
+    height: 30px;
+    padding: 6px 6px 0;
     position: fixed;
     right: 0;
     z-index: 99999;
 }
+.sf-minitoolbar a {
+    display: block;
+}
+.sf-minitoolbar svg,
+.sf-minitoolbar img {
+    max-height: 24px;
+    max-width: 24px;
+}
 
 .sf-toolbarreset * {
     -webkit-box-sizing: content-box;
@@ -36,7 +44,8 @@
 }
 .sf-toolbarreset svg,
 .sf-toolbarreset img {
-    max-height: 20px;
+    max-height: 24px;
+    max-width: 24px;
 }
 
 .sf-toolbarreset .hide-button {