bug #30999 Fix dark themed componnents (ro0NL)

This PR was merged into the 4.2 branch.

Discussion
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Fix dark themed componnents

| Q             | A
| ------------- | ---
| Branch?       | 4.2
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | yes/no <!-- don't forget to update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | #...   <!-- #-prefixed issue number(s), if any -->
| License       | MIT
| Doc PR        | symfony/symfony-docs#... <!-- required for new features -->

Small follow up of #30860

![image](https://user-images.githubusercontent.com/1047696/55705391-f5070300-59de-11e9-8d7e-195ea74d17c3.png)

see #29194 (comment)
___

![image](https://user-images.githubusercontent.com/1047696/55705263-b40eee80-59de-11e9-9503-ba4adf64857c.png)

see #29194 (comment)

Commits
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d2f2e56 Fix dark themed componnents

src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/messenger.html.twig

@@ -58,6 +58,7 @@
 
         .message-item tbody.sf-toggle-content.sf-toggle-visible { display: table-row-group; }
         td.message-bus-dispatch-caller { background: #f1f2f3; }
+        .theme-dark td.message-bus-dispatch-caller { background: var(--base-1); }
     </style>
 {% endblock %}
 

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

@@ -1020,6 +1020,8 @@ table.logs .metadata {
     display: block;
     font-size: 12px;
 }
+.theme-dark tr.status-error td,
+.theme-dark tr.status-warning td { border-bottom: unset; border-top: unset; }
 
 {# Doctrine panel
    ========================================================================= #}