v9.1, v9.2, v9.3 changelog

**v9.1 (10th May 2024):**

* Chapter 4: Add 'Highs & Lows' and its Insight.

* Add the first post-release chapter, Floorboards. It unlocks with 128 puzzle completions, has 28 puzzles and sits just after Chapter Omega. Feedback on difficulty/ordering/cheese sought! It is not finalized yet.

* Credited Slabdrill, Sandra53 and dead0ne as Guest Level Design.

* Custom puzzles: Updated the description of Floorboards and Boulders and Slopes and Time Crystals. Slope cleanup step no longer activates after an undo. Slope cleanup step now keeps trying if a slope happens. Entering a slope now recursively checks if there's an exit to the slopes before being permitted. Broken time crystals are banished out of the map. Fixed a crash related to breaking chrono helixes. Floorboards/Hole interaction added.

* Community levels: Buff/de-cheese 3 puzzles (The Half-Magenta Pit, Ionic Capacitor, Graduation [VAR1]). Add 39 new puzzles and 7 insights/remixes.

**v9.2 (10th May 2024):**

* Fixed a crash bug in Sandra53's World.

* Multiple Floorboards or Fuzz in the same tile are now mirrored.

* Infinite loop is now triggered if an actor falls 100 times in the same turn.

**v9.3 (11th May 2024):**

* Fixed that level editor tooltips would go off screen if they were too long.

* Fix that 'Undo a Restart?' setting wasn't working properly sometimes.

* Chapter A: Moved Compact Transport to Community Levels (Slabdrill's World (Page 2)) and split into [VAR1]. Buffed Slippery Glass [VAR1]. Replaced Cement Pit [VAR1] and added its Remix. Added Cement Pit (Remix). Changed Bridge Building and its Insight. Moved Cement Pit [VAR1] and Slippery Glass [VAR1] later. De-cheese Blackberry Bush.