Improve some translations (#581)

Reviewed-on: https://kolaente.dev/vikunja/frontend/pulls/581
Reviewed-by: konrad <konrad@kola-entertainments.de>
Co-authored-by: andreymal <andriyano-31@mail.ru>
Co-committed-by: andreymal <andriyano-31@mail.ru>

src/views/list/ShowList.vue

@@ -97,7 +97,7 @@ export default {
 
 			saveListToHistory(listData)
 
-			this.setTitle(this.currentList.title)
+			this.setTitle(this.currentList.id ? this.getListTitle(this.currentList) : '')
 
 			// This invalidates the loaded list at the kanban board which lets it reload its content when
 			// switched to it. This ensures updates done to tasks in the gantt or list views are consistently
@@ -144,6 +144,7 @@ export default {
 				.then(r => {
 					this.$set(this, 'list', r)
 					this.$store.commit(CURRENT_LIST, r)
+					this.setTitle(this.getListTitle(r))
 				})
 				.catch(e => {
 					this.error(e)
@@ -154,4 +155,4 @@ export default {
 		},
 	},
 }
-</script>
+</script>

src/views/namespaces/ListNamespaces.vue

@@ -39,7 +39,7 @@
 			</x-button>
 
 			<h1>
-				<span>{{ n.title }}</span>
+				<span>{{ getNamespaceTitle(n) }}</span>
 				<span class="is-archived" v-if="n.isArchived">
 					{{ $t('namespace.archived') }}
 				</span>

src/views/tasks/TaskDetailView.vue

@@ -3,9 +3,9 @@
 		<div class="task-view">
 			<heading v-model="task" :can-write="canWrite" ref="heading"/>
 			<h6 class="subtitle" v-if="parent && parent.namespace && parent.list">
-				{{ parent.namespace.title }} >
+				{{ getNamespaceTitle(parent.namespace) }} >
 				<router-link :to="{ name: listViewName, params: { listId: parent.list.id } }">
-					{{ parent.list.title }}
+					{{ getListTitle(parent.list) }}
 				</router-link>
 			</h6>