l10n: Fixed grammar

Reported at Transifex.

Signed-off-by: rakekniven <2069590+rakekniven@users.noreply.github.com>


Signed-off-by: rakekniven <2069590+rakekniven@users.noreply.github.com>

iOSClient/Supporting Files/en.lproj/Localizable.strings

@@ -925,7 +925,7 @@
 "_disable_livephoto_"       = "Disable Live Photo";
 "_undo_modify_"             = "Undo the modify";
 "_unauthorizedFilesPasscode_" = "Files cannot be used with an activated passcode";
-"_disableFilesApp_"         = "Files cannot be used because is disabled";
+"_disableFilesApp_"         = "Files cannot be used because it is disabled";
 "_reset_application_done_"  = "Reset application, done.";
 
 // Video