fix(CFormSwitch, CFormTextarea): class attribute values are not combining

Author: mrholek

packages/coreui-vue/src/components/form/CFormSwitch.ts

@@ -94,6 +94,7 @@ const CFormSwitch = defineComponent({
                 'is-invalid': props.invalid,
                 'is-valid': props.valid,
               },
+              attrs.class,
             ],
             id: props.id,
             onChange: (event: InputEvent) => handleChange(event),

packages/coreui-vue/src/components/form/CFormTextarea.ts

@@ -133,6 +133,7 @@ const CFormTextarea = defineComponent({
                     'is-invalid': props.invalid,
                     'is-valid': props.valid,
                   },
+                  attrs.class,
                 ],
                 onChange: (event: InputEvent) => handleChange(event),
                 onInput: (event: InputEvent) => handleInput(event),