Added Autotweet editor panel for enable/disable Autotweet and color-coded icon in Pre-Publish panel

[iamdharmesh]

Description of the Change

As requested on #176, This PR adds slotfill for auto-tweet in the editor sidebar and also added a color-coded icon in the pre-publish panel. Please check screenshots for more information on this.

Editor Sidebar
Auto Tweet enabled
Auto Tweet Disabled
[Status] Tweeted Successfully
[Status] Tweet Failed
[Status] Not Tweeted

Pre-Publish Panel
Auto Tweet enabled
Auto Tweet Disabled

Closes #176

Alternate Designs

Possible Drawbacks

n/a

Verification Process

1. Go To Add a new post.
2. Notice the dedicated panel for auto-tweet in the editor sidebar.
3. Test enable/disable tweet on publish
4. Click on publish
5. Notice the pre-publish panel for auto-tweet with icon
6. Test enable/disable tweet on publish
7. Publish the post
8. Verify the tweet status in panel of the editor sidebar (for failed, success, and not tweeted).

Checklist:

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests passed.

Changelog Entry

Added - Autotweet panel in editor sidebar for enable/disable tweet on publish.

Credits

Props @iamdharmesh @jeffpaul @linawiezkowiak @oszkarnagy (for the UX/Design work)

[cadic]

LGTM!

[iamdharmesh]

Thanks for the review @cadic.

@jeffpaul can you please help to quick check on the wordings update in this PR? if anything needs to be updated.

Thanks

[jeffpaul]

@iamdharmesh only one small copy suggestion, otherwise this looks great, thanks!