fix(QuestionMultiple): update NcCheckboxRadioSwitch to use v-model for better data binding

Signed-off-by: Christian Hartmann <chris-hartmann@gmx.de>

Author: Chartman123

src/components/Questions/QuestionMultiple.vue

@@ -79,26 +79,26 @@
 					:key="answer.id"
 					:aria-errormessage="hasError ? errorId : undefined"
 					:aria-invalid="hasError ? 'true' : undefined"
-					:checked="questionValues"
+					:model-value="questionValues"
 					:value="answer.id.toString()"
 					:name="`${id}-answer`"
 					:type="isUnique ? 'radio' : 'checkbox'"
 					:required="checkRequired(answer.id)"
-					@update:checked="onChange"
+					@update:modelValue="onChange"
 					@keydown.enter.exact.prevent="onKeydownEnter">
 					{{ answer.text }}
 				</NcCheckboxRadioSwitch>
 				<div v-if="allowOtherAnswer" class="question__other-answer">
 					<NcCheckboxRadioSwitch
-						:checked="questionValues"
+						:model-value="questionValues"
 						:aria-errormessage="hasError ? errorId : undefined"
 						:aria-invalid="hasError ? 'true' : undefined"
 						:value="otherAnswer ?? QUESTION_EXTRASETTINGS_OTHER_PREFIX"
 						:name="`${id}-answer`"
 						:type="isUnique ? 'radio' : 'checkbox'"
 						:required="checkRequired('other-answer')"
 						class="question__label"
-						@update:checked="onChangeOther"
+						@update:modelValue="onChangeOther"
 						@keydown.enter.exact.prevent="onKeydownEnter">
 						{{ t('forms', 'Other:') }}
 					</NcCheckboxRadioSwitch>
@@ -345,7 +345,7 @@ export default {
 		},
 
 		onChange(value) {
-			this.$emit('update:values', this.isUnique ? [value].flat() : value)
+				this.$emit('update:values', this.isUnique ? [value].flat() : value)
 		},
 
 		/**