feat: use flexsearch for all local searches (#997)

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/frontend/pulls/997
Reviewed-by: dpschen <dpschen@noreply.kolaente.de>
Co-authored-by: konrad <k@knt.li>
Co-committed-by: konrad <k@knt.li>

src/components/namespace/namespace-search.vue

@@ -25,15 +25,7 @@ export default {
 	},
 	computed: {
 		namespaces() {
-			if (this.query === '') {
-				return []
-			}
-			
-			return this.$store.state.namespaces.namespaces.filter(n => {
-				return !n.isArchived && 
-					n.id > 0 &&
-					n.title.toLowerCase().includes(this.query.toLowerCase())
-			})
+			return this.$store.getters['namespaces/searchNamespace'](this.query)
 		},
 	},
 	methods: {