fix(LinkInlineTool): improve unlink behavior based on input state#2979

AlexGaillard wants to merge 8 commits intocodex-team:nextcodex-team/editor.js:nextfrom

AlexGaillard:hotfix/issue2890-inline-link-tool-interaction-breaks-with-other-toolsAlexGaillard/editor.js:hotfix/issue2890-inline-link-tool-interaction-breaks-with-other-toolsCopy head branch name to clipboard