v2.3.0 release

• Act editor is now responsive so it stays usable in a narrow side panel, with a "Configure Scene" jump button on smaller layouts to scroll straight to the scene configuration
• #295: Added the insertTypingSpeedRandomness setting and action property to add a semi-random variation to the character-by-character typing speed so it feels more human and less robotic
• #412: Added the ability to record a demo flow (create file, open file, append text, highlight text, etc.)
• #413: Added the ability to move one or more moves to an existing or new scene from the act editor (select moves, then use "Move to scene…"), preserving their order