fix(NcCheckboxContent): correctly check default slot

Signed-off-by: Raimund Schlüßler <[email protected]>

src/components/NcCheckboxRadioSwitch/NcCheckboxContent.vue

@@ -26,7 +26,7 @@
 		:class="{
 			['checkbox-content-' + type]: true,
 			'checkbox-content--button-variant': buttonVariant,
-			'checkbox-content--has-text': !!$slots.default,
+			'checkbox-content--has-text': isSlotPopulated($slots.default()),
 		}">
 		<!--
 			label can't be used here because of shift+click firefox bug
@@ -53,7 +53,7 @@
 			</slot>
 		</span>
 
-		<span v-if="$slots.default" :class="['checkbox-content__text', textClass]">
+		<span v-if="isSlotPopulated($slots.default())" :class="['checkbox-content__text', textClass]">
 			<!-- @slot The checkbox/radio label -->
 			<slot />
 		</span>
@@ -70,6 +70,7 @@ import ToggleSwitchOff from 'vue-material-design-icons/ToggleSwitchOff.vue'
 import ToggleSwitch from 'vue-material-design-icons/ToggleSwitch.vue'
 
 import NcLoadingIcon from '../NcLoadingIcon/index.js'
+import isSlotPopulated from '../../utils/isSlotPopulated.ts'
 
 export const TYPE_CHECKBOX = 'checkbox'
 export const TYPE_RADIO = 'radio'
@@ -166,6 +167,10 @@ export default {
 		},
 	},
 
+	methods: {
+		isSlotPopulated,
+	},
+
 	computed: {
 		isButtonType() {
 			return this.type === TYPE_BUTTON