DOC-2411: Resolved an issue where emojis were not loading correctly due to a broken CDN

[kemister85]

Ticket: DOC-2411

Site: Staging branch: release notes entry

Site: Staging branch: emoticons_images_url

Changes:

• Added fix for TINY-10878 and included changes to emoticons#emoticons_images_url for DOC-2406.

Pre-checks:

• [x] Branch prefixed with feature/<version>/, hotfix/<version>/, staging/<version>/, or release/<version>/

Review:

• [x] Documentation Team Lead has reviewed