Idle Cinematics 1.4.0

• Added an optional setting to keep rendering smooth while a cinematic is active.
• Added Performance, Balanced, and Quality scene-analysis profiles.
• Added three original rail shots with smooth, constant-speed camera movement.
• Expanded the diagnostic overlay with scene, safety, selection, performance, and compatibility details.
• Added optional Dynamic FPS compatibility with safe fallback behavior.
• Improved shot-selection and fallback diagnostics.
• Added the same functionality for Minecraft 26.1.2 and 1.21.1.