fix(wordings): add comments

Signed-off-by: Jérôme Herbinet <33763786+Jerome-Herbinet@users.noreply.github.com>

Author: Jerome-Herbinet

apps/files_sharing/src/views/SharingDetailsTab.vue

@@ -626,9 +626,9 @@ export default {
 
 		shareButtonText() {
 			if (this.isNewShare) {
-				return t('files_sharing', 'Save')
+				return t('files_sharing', 'Save') /** TRANSLATORS: Single-verb label to prevent button truncation in some languages **/
 			}
-			return t('files_sharing', 'Update')
+			return t('files_sharing', 'Update') /** TRANSLATORS: Single-verb label to prevent button truncation in some languages **/
 		},
 
 		resharingIsPossible() {