Incorrect variable typing and function incompatibility for FacebookPost class

Adding a patch

Patch is not updated, but fixes were added to the MR to account for changes to the NetworkBase constructor in social_api

This issue caused a site to stop posting to Facebook. As of the latest commits on the MR, the site was able to post to facebook again. These changes address a few of the changes that occurred in social_api:
- dependency injection for network manager: https://git.drupalcode.org/project/social_api/-/commit/47ffc2c97683f0c19...
- also noteworthy that we are waiting on an upstream fix from social_api that may also cause issues with authenticating: https://www.drupal.org/project/social_api/issues/3501411 🐛 Error: Typed property Drupal\social_api\SocialApiDataHandler::$sessionPrefix must not be accessed before initialization in Drupal\social_api\SocialApiDataHandler->getSessionPrefix() Active

So anyone following this issue, be sure to check whether this issue has been resolved or if you still need the issue fork from social api.