fix(tags): resolve selected tag in settings

The "Search for a tag to edit" field should show the selected tag as the selected option. It fails to do so because the object is passed instead of just the id.

Signed-off-by: Josh <josh.t.richards@gmail.com>

Author: joshtrichards

apps/systemtags/src/components/SystemTagForm.vue

@@ -230,7 +230,7 @@ function getTagLevel(userVisible: boolean, userAssignable: boolean): TagLevel {
 		<div class="system-tag-form__group">
 			<label for="system-tags-input">{{ t('systemtags', 'Search for a tag to edit') }}</label>
 			<NcSelectTags
-				:modelValue="selectedTag"
+				:modelValue="selectedTag?.id ?? null"
 				inputId="system-tags-input"
 				:placeholder="t('systemtags', 'Collaborative tags …')"
 				:fetchTags="false"