compact-composer plugin v1.0.0

[SergeyMosin]

The idea was to give the composer a more minimalist UI look and organize the composer toolbar into sub-menus.

Notable changes:

• Toolbar sub-menus:
  • Colors
  • Insert Image
  • Right Side (main) menu
• Moved attachments area to the bottom (only visible when attachments are present)
  • Drag and Drop area is shown on drag event Drag-and-Drop screenshot
  • Multiple attachments are scrolled Attachments Scroll screenshot
• Moved the "Attach" button in the toolbar
• Tabs are only shown when Mailvelope is enabled
• Squire v2 is used
• Minor fixes/improvements
  • Added I tag to allowedElements otherwise italic formatting is lost on paste
  • Some opening/closing td/div tags were mismatched in PopupsCompose.html

[the-djmaze]

Thanks!

[SergeyMosin]

Just adding a reference for more info at : #1473