Trim whitespace on user submission for email host name

[KatieMFritz]

Description

I just spent a while troubleshooting SMTP email setup, when part of my problem was that I had pasted a trailing space at the end of my host name. It would be cool if that field automatically trimmed whitespace at the start or end of the string. I can't think of a case where whitespace would be needed - can you?

Steps to reproduce

1. Paste host name with trailing space that you don't notice.
2. Troubleshoot fruitlessly for a while.
3. Think "what if there's a trailing space?"
4. Discover trailing space and delete it.
5. Successfully send test email.
6. Ask Craft to save future devs from this cycle.
   😘

Additional info

• Craft version: 3.0.30.2

[brandonkelly]

Thanks for the suggestion. Done for tomorrow’s release!