Add relist and deprecate to unlist scope

[joelverhagen]

The existing unlist API key scope already has the relist and deprecate capabilities. This updates the supporting text used on the API keys page to mention these capabilities.

Progress on https://github.com/NuGet/NuGetGallery/issues/8873.

Summary of changes:

• Add relist to the API key label since it's always been there
• Make wording of package vs. package versions consistent (unlist/relist/deprecate is done at the version level)
• Show deprecate capability on the API key if the user is in the flight
• Delete some unused string in src/NuGetGallery/Strings.resx
• Fix web.config indentation for binding redirects

Before

After