display properly tooltip by defining their width.

static/plugin_dbui/src/form/plugin/ToolTip.js

@@ -29,7 +29,8 @@ Ext.define('App.form.plugin.ToolTip', {
             Ext.tip.QuickTipManager.register({
                 target: c.id,
                 title: c.fieldLabel,
-                text: c.tipText
+                text: c.tipText,
+                width: 200
             });
         }