fix: Use localCompare to sort labels

Signed-off-by: Julius Härtl <jus@bitgrid.net>

src/components/board/TagsTabSidebar.vue

@@ -130,7 +130,7 @@ export default {
 			return true
 		},
 		labelsSorted() {
-			return [...this.labels].sort((a, b) => (a.title < b.title) ? -1 : 1)
+			return [...this.labels].sort((a, b) => a.title.localeCompare(b.title))
 		},
 
 	},