suspicion: no singular in 2 strings

[cloud2018]

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Describe the bug ** This is only a suspicion, I am not sure if this is really an issue !!!**

2 new strings have only plural no singular: 1) https://github.com/nextcloud/deck/blob/242906162f12054729f2f776598e0c9f57ef5c14/src/views/CardReferenceWidget.vue#L138

• Created on {created}
• Last modified on {lastMod} *{nbAttachments} attachments
• {nbComments} comments

https://github.com/nextcloud/deck/blob/242906162f12054729f2f776598e0c9f57ef5c14/src/views/CardReferenceWidget.vue#L146 {nbCards} cards

Steps to Reproduce This is just seen in Transifex. Most strings with numbers have a singular and a plural version