Grammar: consistency in command descriptions

[SuggonM]

This PR includes minor changes related to grammar consistency in the string files.

Resolved / Related Issues

N/A

Steps used to test these changes

N/A

[yaira2]

Thank you for your contribution! Updates to the translations are managed through our Crowdin project at https://crowdin.com/project/files-app. Feel free to reach out if you have any questions.

[0x5bfa]

I think this was meant to update only en-US resources.

[SuggonM]

Thanks, I wasn't aware the translations were being managed from a different location.

I've found the string in question in Crowdin, but it seems the system will require someone with elevated rights to be able to modify the source string itself. Would it be better to let the right people take the action? (cc @yaira2 @0x5bfa)

1. https://crowdin.com/editor/files-app/34/en-engb#q=Moves
2. https://crowdin.com/editor/files-app/34/en-engb#q=Closes

[0x5bfa]

I mean, I think you meant to edit only en-US resources. Crowdin automatically reflects the change to other languages. @yaira2.