bug symfony#23460 Don't display the Symfony debug toolbar when printing the page (javiereguiluz)

This PR was squashed before being merged into the 2.8 branch (closes symfony#23460).

Discussion
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Don't display the Symfony debug toolbar when printing the page

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | symfony#23303
| License       | MIT
| Doc PR        | -

Commits
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ca3ff88 Don't display the Symfony debug toolbar when printing the page

Author: nicolas-grekas

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

@@ -527,3 +527,10 @@
     padding: 5px 0;
     margin-right: 10px;
 }
+
+/***** Media query print: Do not print the Toolbar. *****/
+@media print {
+    .sf-toolbar {
+        display: none;
+    }
+}