feat: improve gantt filter label

frontend/cypress/e2e/project/project-view-gantt.spec.ts

@@ -53,7 +53,7 @@ describe('Project View Gantt', () => {
 		cy.visit('/projects/1/2')
 
 		cy.get('.gantt-options .fancy-checkbox')
-			.contains('Show tasks which don\'t have dates set')
+			.contains('Show tasks without dates')
 			.click()
 
 		cy.get('.g-gantt-rows-container')

frontend/src/components/project/views/ProjectGantt.vue

@@ -41,7 +41,7 @@
 						v-model="filters.showTasksWithoutDates"
 						is-block
 					>
-						{{ $t('project.gantt.showTasksWithoutDates') }}
+						{{ $t('task.show.noDates') }}
 					</FancyCheckbox>
 				</div>
 			</Card>

frontend/src/i18n/lang/de-DE.json

@@ -329,7 +329,6 @@
     },
     "gantt": {
       "title": "Gantt",
-      "showTasksWithoutDates": "Aufgaben anzeigen, für die keine Daten festgelegt sind",
       "size": "Größe",
       "default": "Standard",
       "month": "Monat",

frontend/src/i18n/lang/en.json

@@ -329,7 +329,6 @@
     },
     "gantt": {
       "title": "Gantt",
-      "showTasksWithoutDates": "Show tasks which don't have dates set",
       "size": "Size",
       "default": "Default",
       "month": "Month",