Bug fixes

Fix for multiple 'filefield source jsonapi' fields on the same form.
Refactor: config->get('basicAuthentication') to getBasicAuthentication() method.
PHCS fixes.

Media entity Instagram 8.x-2.0-alpha2

Changes since 8.x-2.0-alpha1

• Issue #2937371 by melvinlouwerse, esteinborn: Plugin 'InstagramEmbedCode' does not exist error

Media entity Instagram 8.x-1.5

Changes since 8.x-1.4

• Issue #2937371 by melvinlouwerse, esteinborn: Plugin 'InstagramEmbedCode' does not exist error

* #2997655: Carousel fails using field link with empty links Carousel fails using field link with empty links

Fix class naming caused by git ignorecase on mac.