Fix the rendering of query explanation with Postgresql

Postgresql (and some other platforms) provide a textual query
explanation rather than a tabular one.
The previous styles were working only for a tabular display. For text
allowing to break words, `min-content` is the width of a single letter.

Author: stof

Resources/views/Profiler/profiler.css.twig

@@ -2079,7 +2079,7 @@ tr.log-status-silenced > td:first-child:before {
     max-width: 888px;
 }
 .width-full .sql-explain {
-    max-width: min-content;
+    max-width: unset;
 }
 .sql-explain table td, .sql-explain table tr {
     word-break: normal;