Disable radio buttons in color dialog if not using first tab
[composer] Prevent multiple calculation of data defined properties
[composer] Refresh refetches atlas feature from provider, more removal of duplicate map redraws
[color picker] Clicking the previous color should reset to that color
[composer] Don't snap to hidden items
[composer] Use spin boxes for item position and size
[composer] Correctly handle encoded HTML source (fix #11287)