fix(focus-trap): provide HTMLElement as fallbackFocus

Signed-off-by: Maksim Sukharev <[email protected]>

Author: Antreesy

src/components/NcAppSidebar/NcAppSidebar.vue

@@ -1010,7 +1010,7 @@ export default {
 				document.querySelector('#header'),
 			], {
 				allowOutsideClick: true,
-				fallbackFocus: this.$refs.closeButton,
+				fallbackFocus: this.$refs.closeButton.$el,
 				trapStack: getTrapStack(),
 				escapeDeactivates: false,
 			})

src/components/NcHeaderMenu/NcHeaderMenu.vue

@@ -319,7 +319,7 @@ export default {
 			this.focusTrap = createFocusTrap(contentContainer, {
 				allowOutsideClick: true,
 				trapStack: getTrapStack(),
-				fallbackFocus: this.$refs.trigger,
+				fallbackFocus: this.$refs.trigger.$el,
 			})
 			this.focusTrap.activate()
 		},