I can manage blocks inside the preview (quanta toolbar)

[djay]

User stories (As an editor...)

• I can Click on a block in preview to see its configuration appear in sidepanel #23
• I can Click on a block and see a border to show its selected and this stays visible while scrolling #24
• I can Click on block and Quanta toolbar appears on top. #25
• I can Click delete button on quanta toolbar and removes block from preview #26
• I can Click Add button below block to add a new block below #27
• as an integrator I can specify which blocks can be added #70

Out of scope

• I can click block settings to open the sidebar if its closed or switch to block settings #81
• I can Use DnD (inline) to move a block around in a page (line for droppoint and no shadow like tiles?) #65
• I can cut, Copy and paste blocks (using quanta toolbar) #67
• I can Click on Undo/redo button to reverse the changes just made
• I can Select multiple blocks from toolbar to adjust there order at once. #104
• I can Select multiple blocks at once (inline) so I can move them inside a container. (does Volto support this now?)
• I can select multiple blocks using text selection
• I can use the hydra on mobile #82
• I can add blocks before and after using the quanta toolbar menu
• As an integrator I can use comment syntax to specify block uids #113
• I can see a single line highlight for text only style blocks

Technical

• Communicating from the iFrame bridge to the admin UI
• Keeping block locations stored- for selection/showing UI
• Painting inside of the iFrame (block selection border) for simple things that stay during scroll
• Painting ontop-outside of the iFrame (quanta toolbar) and hiding them during scroll

[djay]

I split the container stuff into a seperate epic in #99. It's really a whole seperate thing to deal with