v3.0.0

BREAKING CHANGES

• Upgraded the minimal versions of Node.js to 14.0.0 due to the end of LTS.

Features

• Implemented the mini inspector (MiniCKEditorInspector) in a separate build. Closes #143. (commit)
• The "Log editor data" button should copy to the clipboard if clicked with the Shift key. Closes #136. (commit)

Other changes

• Updated the required version of Node.js to 14. See ckeditor/ckeditor5#10972. (commit)