Add trello migration (#336)

Reload namespaces and lists after migrating

Add trello logo

Add trello migration

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/frontend/pulls/336
Co-Authored-By: konrad <konrad@kola-entertainments.de>
Co-Committed-By: konrad <konrad@kola-entertainments.de>

src/views/migrator/MigrateService.vue

@@ -33,6 +33,10 @@ export default {
 				this.name = 'Todoist'
 				this.identifier = 'todoist'
 				break
+			case 'trello':
+				this.name = 'Trello'
+				this.identifier = 'trello'
+				break
 			default:
 				router.push({name: '404'})
 		}