Align menu animation to JPCSP (linear tween); capture crashes to log

JPCSP's AbstractAnimAction interpolates linearly and ignores accelMode, so
match that instead of adding easing. Log any uncaught exception from all
threads (video/audio/animator/timer/FX) to /tmp/umd-crash.log to diagnose the
Scenes/Languages crash.

core/src/main/java/dev/quoije/umd/rco/anim/Tween.java

@@ -49,10 +49,7 @@ public final class Tween {
     }
 
     private static float ease(float p, int accelMode) {
-        return switch (accelMode) {
-            case EASE_IN -> p * p;
-            case EASE_OUT -> 1f - (1f - p) * (1f - p);
-            default -> p;
-        };
+        // JPCSP interpolates linearly and ignores accelMode (see AbstractAnimAction).
+        return p;
     }
 }