Add missing autocomplete attributes to input fields

[odnmalau]

Fixes #3019

Changes proposed in this pull request:
js/src/forum/components/LogInModal.js

Reviewers should focus on:

Screenshot

Confirmed

• Frontend changes: tested on a local Flarum installation.
• Backend changes: tests are green (run composer test).

Required changes:

• Related documentation PR: (Remove if irrelevant)
• Related core extension PRs: (Remove if irrelevant)

[davwheat]

Thanks for the PR! We don't use React, and instead use mithril, meaning that we don't capitalise our attributes (props) like React does, so autoComplete should instead be autocomplete.

If you planned to do so, you might also want to add the appropriate attributes to the sign up and change password areas of Flarum. :)

[odnmalau]

OK, give me some time to do it.

[odnmalau]

Hi, I've updated it again, please check it

[askvortsov1]

LGTM, thank you very much!