fix(files): rename actions submenu back entry

Signed-off-by: skjnldsv <skjnldsv@protonmail.com>

[skip ci]

Author: skjnldsv

apps/files/src/components/FileEntry/FileEntryActions.vue

@@ -68,7 +68,7 @@
 					<template #icon>
 						<ArrowLeftIcon />
 					</template>
-					{{ actionDisplayName(openedSubmenu) }}
+					{{ t('files', 'Back') }}
 				</NcActionButton>
 				<NcActionSeparator />