Add description to release title

What does this MR do and why?

Adds context to the Release name title for what happens when it is left blank.

Solves for #386044 (closed)

Screenshots or screen recordings

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Before	After

How to set up and validate locally

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

1. Visit Deploy -> Releases -> New Release
2. View changes on the Release Title input field.

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.