bug #34811 [TwigBridge] Update bootstrap_4_layout.html.twig missing s…

…witch-custom label (sabruss)

This PR was submitted for the master branch but it was merged into the 4.4 branch instead (closes #34811).

Discussion
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[TwigBridge] Update bootstrap_4_layout.html.twig missing switch-custom label

| Q             | A
| ------------- | ---
| Branch?       | 5.0
| Bug fix?      | yes
| New feature?  | no
| License       | MIT

Missing .custom-control-label for bootstrap custom-switch when using .switch-custom class in label_attr

Commits
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9347b2e [TwigBridge] Update bootstrap_4_layout.html.twig

src/Symfony/Bridge/Twig/Resources/views/Form/bootstrap_4_layout.html.twig

@@ -242,7 +242,7 @@
 {% block checkbox_radio_label -%}
     {#- Do not display the label if widget is not defined in order to prevent double label rendering -#}
     {%- if widget is defined -%}
-        {% set is_parent_custom = parent_label_class is defined and ('checkbox-custom' in parent_label_class or 'radio-custom' in parent_label_class) %}
+        {% set is_parent_custom = parent_label_class is defined and ('checkbox-custom' in parent_label_class or 'radio-custom' in parent_label_class or 'switch-custom' in parent_label_class) %}
         {% set is_custom = label_attr.class is defined and ('checkbox-custom' in label_attr.class or 'radio-custom' in label_attr.class or 'switch-custom' in label_attr.class) %}
         {%- if is_parent_custom or is_custom -%}
             {%- set label_attr = label_attr|merge({class: (label_attr.class|default('') ~ ' custom-control-label')|trim}) -%}