fix: getPayload generate import map only in Next.js

[r1tsuu]

After the change with removing getPayloadHMR, we do generate import map even outside of Next.js, which leads to errors when using in a project without it:

[fofoy]

Hey @r1tsuu, thanks again for this PR, is there anything blocking this PR being merged ?

I also noticed and reported on Discord that when we load Payload outside of Next.js, the email configuration is trying to load, generating errors related to Nodemailer like so, I guess it's not exactly normal when we just want to use the Local API, what do you think ?

[r1tsuu]

Hey @r1tsuu, thanks again for this PR, is there anything blocking this PR being merged ?

I also noticed and reported on Discord that when we load Payload outside of Next.js, the email configuration is trying to load, generating errors related to Nodemailer like so, I guess it's not exactly normal when we just want to use the Local API, what do you think ?

I don't think, but need some eyes on it. Do you have this specific error that PR fixes?

[fofoy]

That's another one I'm getting on either 3.0.2-canary.03cffa2 or 3.2.0 but since that was kind of related if thought I'd mention it there. I can open another issue if you prefer !

[r1tsuu]

That would be nice!

[github-actions]

🚀 This is included in version v3.5.0