Re-styled component to set min-height

This is to prevent body text on the component from overflowing its
container.
Re-work the available options on TinyMCE
Slight UI re-work to page editor

- Rendering displayTitle in templates to match framework output
- Added hover text on edit (cog) and delete (trash) icons
Slight re-work to persistScrollPosition()
Removed comment
Merge branch 'develop' of github.com:adaptlearning/adapt_authoring into page-editor-ui-tweaks

Conflicts:
	frontend/src/core/editor/page/views/editorPageView.js
Merge pull request #383 from adaptlearning/page-editor-ui-tweaks

Page editor ui tweaks