References #5071
- Re-implements the previously broken top notification styles
- Moves the top notification outlet outside the `<main>` to ease styling (we have several nested position fixed/absolute boxes that make this tough - moving the outlet makes it easier)
- if the user has filled out their email already when they hit 'forgotten password' then automatically fill out and submit the form
- this will look better when we have spinners on the buttons
References https://github.com/TryGhost/Ghost/pull/4373
* Consistent line-height & padding cross-browser
* Remove drag handle from textarea
* Partially clean up the CSS to more closely match the new standard
closes#4368, fixes#1240 (spellcheck), fixes#4974 & fixes#4983 (caret positioning bugs)
- Drop CodeMirror in favour of a plain text area
- Use rangyinputs to handle selections cross-browser
- Create an API for interacting with the textarea
- Replace marker manager with a much simpler image manager
- Reimplement shortcuts, including some bug fixes
