Consolidate last X days i18n strings

What does this MR do and why?

Follow up to !108398 (comment 1236287396)

• Consolidates strings used for Last X days
• Removes this unnecessary translation !108398 (comment 1240935413)

Screenshots or screen recordings

No visual changes

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #383690 (closed)