Make help text more in line with other help texts

[dimadin]

This PR changes one help text string: it moves "sorry" to the start of the string, and it removes exclamation mark from the end.

[kristastevens]

Hello -- thanks for the copy review ping! Can I see the original and proposed versions of the text?

[Soean]

If you click on files changed, you see the versions in a diff.

Here they are:
Old: Previews for this are unavailable in the editor, sorry!
New: Sorry, previews for this are unavailable in the editor.

The context is the preview in the embed block.

[kristastevens]

Thanks for the GitHub education!

I'd go with:

Sorry, a preview is unavailable in the editor.

[dimadin]

Two notes:

• Other similar strings in both WordPress core and Gutenberg start with "Sorry," and end in full stop. This is why I reported this string.
• It might be valuable to know context in which this string shows up: it's in Embed block when user is trying to embed content from a site that is blacklisted from having embed previews (correct me if I'm wrong).

[gziolo]

@kristastevens, I agree with @dimadin that it needs to be more specific given that it's directly related to embeds.

[notnownikki]

How about:

Sorry, we cannot preview this embedded content in the editor.

[kristastevens]

@gziolo, I think @notnownikki makes a great suggestion:

Sorry, we cannot preview this embedded content in the editor.

[mcsf]

@dimadin, sounds like we have a winner with that last iteration ("Sorry, we cannot preview this embedded content in the editor."). What's the status of this PR?

[gziolo]

I updated the copy with the latest suggestion 👍

[tofumatt]

I dig it 😄

Restarted the buggy tests and they passed.