Pontoon: Update Norwegian Nynorsk (nn-NO) localization of Firefox Send

Localization authors:
- Björn I. <bjorni.svindseth@yahoo.com>

public/locales/nn-NO/send.ftl

@@ -77,7 +77,17 @@ fileCount =
         [one] 1 fil
        *[other] { $num } filer
     }
-# size is a localized number followed by a unit of bytes, ex. 2.5GB
+# byte abbreviation
+bytes = B
+# kibibyte abbreviation
+kb = KB
+# mebibyte abbreviation
+mb = MB
+# gibibyte abbreviation
+gb = GB
+# localized number and byte abbreviation. example "2.5MB"
+fileSize = { $num }{ $units }
+# $size is the size of the file, displayed using the fileSize message as format (e.g. "2.5MB")
 totalSize = Total storleik: { $size }
 # the next line after the colon contains a file name
 copyLinkDescription = Kopier lenka for å dele fila di:
@@ -107,15 +117,15 @@ uploadButton = Last opp
 # the first part of the string 'Drag and drop files or click to send up to 1GB'
 dragAndDropFiles = Dra og slepp filer
 # the second part of the string 'Drag and drop files or click to send up to 1GB'
-# size is a localized number followed by a unit of bytes, ex. 2.5GB
+# $size is the size of the file, displayed using the fileSize message as format (e.g. "2.5MB")
 orClickWithSize = eller klikk for å senda opp til { $size }
 addPassword = Vern med passord
 emailPlaceholder = Skriv inn e-postadressa di
-# size is a localized number followed by a unit of bytes, ex. 2.5GB
+# $size is the size of the file, displayed using the fileSize message as format (e.g. "2.5MB")
 signInSizeBump = LOgg inn for å senda opp til { $size }
 signInButton = Logg inn/Registrer deg
 accountBenefitTitle = Lag ein { -firefox }-konto eller logg inn
-# size is a localized number followed by a unit of bytes, ex. 2.5GB
+# $size is the size of the file, displayed using the fileSize message as format (e.g. "2.5MB")
 accountBenefitLargeFiles = Del filer opp til { $size }
 accountBenefitDownloadCount = Del filer med fleire personar
 accountBenefitTimeLimit =