Update en_US/Bundle.properties etc. for Dataverse 6.8

[ofahimIQSS]

Hello!

I’m reaching out to request an update to the en_US/Bundle.properties file (and related localization files) to align with the upcoming Dataverse 6.8 release. This update is needed to resolve deployment issues tied to the following pull request:

IQSS/dataverse#10940

@JayanthyChengan Tagging you for awareness. Thank you!

[JayanthyChengan]

Updated the develop branch with version 6.8 files