v2.23.0-rc.1

• Improvement — UI — Block Tunes toggler moved to the left
• Improvement — UI — Block Actions (BT toggler + Plus Button) will appear on block hovering instead of click
• Improvement — UI — Block Tunes toggler icon and Plus button icon updated
• Improvement — Dev Example Page — The menu with helpful buttons added to the bottom of the screen
• Improvement — Dev Example Page — The 'dark' theme added. Now we can code at night more comfortably.
• Improvement — Rectangle Selection — paint optimized
• Fix — Rectangle Selection — the first click after RS was not clear selection state. Now does.
• Improvement — Blocks API — toolbar moving logic removed from blocks.move() and blocks.swap() methods. Instead, you should use Toolbar API (it was used by MoveUp and MoveDown tunes, they were updated).
• New — Blocks API — The getBlockIndex() method added
• New — Blocks API — the insert() method now has the replace: boolean parameter
• New — Blocks API — the insert() method now returns the inserted Block API
• New — Listeners API — the on() method now returns the listener id.
• New — Listeners API — the new offById() method added
• New — API — The new UiApi section was added. It allows accessing some editor UI nodes and methods.
• Refactoring — Toolbox became a standalone class instead of a Module. It can be accessed only through the Toolbar module.
• Refactoring — CI flow optimized.