Remove outer div (fixes #19)

[alexrsagen]

What kind of change does this PR introduce?

• Adds properties width and fieldClassName to the <SemanticDatepicker> element, forwarding them in addition to the existing properties disabled, error, inline, required to the existing <Form.Field> element.
• Wraps the <Form.Field> element with a <Ref> element, to set the ref this.el on the <Form.Field> element
• Sets position: relative CSS on the existing <Form.Field> element
• Removes the outer div

What is the current behavior?
You cannot set className or width on the inner <Form.Field> element.

What is the new behavior?
You can now set className or width on the inner <Form.Field> element.

There is also one less <div> in the DOM, which is nice.

Checklist:

• Documentation
• Tests
• Ready to be merged

I'm not quite sure if there are any additional steps needed before merging this, so I am requesting a review before anything is merged.

[vercel]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/arthurdenner/react-semantic-ui-datepickers/AVs7giEbj7ZGyQrVDNRTNfH2S5we
✅ Preview: https://react-semantic-ui-datepickers-git-fork-kons-79c053-arthurdenner.vercel.app

[alexrsagen]

@arthurdenner This should resolve #26 in an ideal way as well, since you can set the semantic <Form.Field> property width directly, right?

Hoping to get this merged and released ASAP. Thanks for your (and all the other contributors) hard work on this datepicker 😄

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[bmartin1134]

When is this being rolled into the main branch?

[jatls]

I'm also keen to see this PR merged. Any updates?