AMBARI-25398: Textareas in configuration page can be resized beyond its container border limit (#3549)

ambari-web/app/styles/service_configurations.less

@@ -106,6 +106,10 @@
           }
         }
       }
+      .ember-text-area {
+        min-width: 450px;
+        max-width: 100%;
+      }
     }
     .entry-row.indent-1 {
       margin-left: 2em;