Feature: Add Syndication Links support

[Firestorm980]

Description of the Change

Adds support for Syndication Links with autoshare. Automatically adds the links to Twitter/X to Syndication Links meta.

Closes #79

How to test the Change

1. Start the included WP environment and login
2. Setup the Autoshare for Twitter plugin as normal
3. Make sure Syndication Links plugin is active
4. Add a new post with data, publsih
5. Share the post via the Autoshare plugin as normal in classic or block editor mode
6. When clicking the autoshare button in the panel to share the tweet, the link for the tweet should be automatically added to the syndication links
7. Reload the page, the link should still exist under the Syndication Links meta panel
8. Repeat steps 4 - 6, click "update" to verify the tweet link in the Syndication Links persists

Notes:

• I didn't test with multiple accounts but it should be supported since the addition will loop through all tweet URLs. This should be tested as well.
• The addition shouldn't throw any errors when the Syndication Links plugin is not activated or available

Changelog Entry

Added - Support for adding Twitter/X to Syndication Links automatically
Added - Syndication Links plugin to the WP environment config

Credits

Props @Firestorm980

Checklist:

• I agree to follow this project's Code of Conduct.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests pass.

[github-actions]

@Firestorm980 thanks for the PR! Could you please fill out the PR template with description, changelog, and credits information so that we can properly review and merge this?

[iamdharmesh]

Hi @Firestorm980,

Thanks a lot for working on this and raising the PR. Great work here. PR looks good but I have noticed one issue during testing: when we publish the post and it gets autoposted on X/Twitter, I didn't see syndication links added to the post (even after refreshing). Additionally, when I retweet, I find the syndication links filled up with the first input blank. Please check the attached video for more information on this.

Screen.Recording.2024-07-05.at.8.26.02.PM.mov

Could you please help check if this is happening on your end as well?

Thanks,

[jeffpaul]

👋🏼 @dshanske would love your review here as well

[dshanske]

Will do

[dshanske]

It looks good to me. Makes me think I should just give in and write a block compatible version...but...maybe this will inspire someone to submit a PR or two. To be honest. the concept of the plugin is a nice and simple...store and display links philosophy.