🚀 Link improvements (#601)
🚀 Link improvements (#601)

no issue
- Adds a few improvements for link insertion.
  - Sanitises links
  - Toggles a link so that if there are existing links in the selected text it removes them.
TryGhost/Ghost-Admin,JohnONolan/Ghost-Admin,acburdine/Ghost-Admin,TryGhost/Ghost-Admin,JohnONolan/Ghost-Admin,kevinansfield/Ghost-Admin,kevinansfield/Ghost-Admin,acburdine/Ghost-Admin