Fix ProMotion (#8020)

## Summary

This PR fixes the conditional statements that caused us to always limit
the frame rate to 60 FPS, even when it would be possible to switch to
120 FPS.


https://github.com/user-attachments/assets/0f1d657f-d1fd-40ed-909a-707d624079e4
## Test plan

Author: piaskowyk

packages/react-native-worklets/apple/worklets/apple/AnimationFrameQueue.mm

@@ -16,21 +16,14 @@
 const auto POOR = CAFrameRateRangeMake(10, 24, 24);
 } // namespace FrameRateRange
 
-enum FrameRateRangeEnum {
-  BEST,
-  STANDARD,
-  LOW,
-  POOR,
-};
-
 @implementation AnimationFrameQueue {
   /* DisplayLink is thread safe. */
   WorkletsDisplayLink *displayLink_;
   std::vector<std::function<void(double)>> frameCallbacks_;
   std::mutex callbacksMutex_;
   std::chrono::duration<double, std::milli> timeDeltas_[TIME_SAMPLES_AMOUNT];
   int timeDeltaIndex_;
-  FrameRateRangeEnum curentFrameRate_;
+  CAFrameRateRange currentFrameRate_;
 }
 
 typedef void (^AnimationFrameCallback)(WorkletsDisplayLink *displayLink);
@@ -43,7 +36,7 @@ - (instancetype)init
   if constexpr (worklets::StaticFeatureFlags::getFlag("IOS_DYNAMIC_FRAMERATE_ENABLED")) {
     bool supportsProMotion = [UIScreen mainScreen].maximumFramesPerSecond > 60;
     SEL frameCallback = supportsProMotion ? @selector(executeQueueForProMotion:) : @selector(executeQueue:);
-    curentFrameRate_ = supportsProMotion ? BEST : STANDARD;
+    currentFrameRate_ = supportsProMotion ? FrameRateRange::BEST : FrameRateRange::STANDARD;
     displayLink_ = [WorkletsDisplayLink displayLinkWithTarget:self selector:frameCallback];
   } else {
     displayLink_ = [WorkletsDisplayLink displayLinkWithTarget:self selector:@selector(executeQueue:)];
@@ -111,19 +104,24 @@ - (void)executeQueueForProMotion:(WorkletsDisplayLink *)displayLink
     // Perform this on every TIME_SAMPLES_AMOUNT-nth frame instead of each one
     return;
   }
-  float averageFrameDuration = 0;
+  float averageComputationTime = 0;
   for (int i = 0; i < TIME_SAMPLES_AMOUNT; i++) {
-    averageFrameDuration += timeDeltas_[i].count();
+    averageComputationTime += timeDeltas_[i].count();
+  }
+  averageComputationTime = averageComputationTime / TIME_SAMPLES_AMOUNT;
+  CAFrameRateRange frameRateRange;
+  if (averageComputationTime < 8) {
+    frameRateRange = FrameRateRange::BEST;
+  } else if (averageComputationTime < 16) {
+    frameRateRange = FrameRateRange::STANDARD;
+  } else if (averageComputationTime < 33) {
+    frameRateRange = FrameRateRange::LOW;
+  } else {
+    frameRateRange = FrameRateRange::POOR;
   }
-  averageFrameDuration = averageFrameDuration / TIME_SAMPLES_AMOUNT;
-  if (averageFrameDuration < 8 && curentFrameRate_ != BEST) {
-    displayLink_.preferredFrameRateRange = FrameRateRange::BEST;
-  } else if (averageFrameDuration < 16 && curentFrameRate_ != STANDARD) {
-    displayLink_.preferredFrameRateRange = FrameRateRange::STANDARD;
-  } else if (averageFrameDuration < 33 && curentFrameRate_ != LOW) {
-    displayLink_.preferredFrameRateRange = FrameRateRange::LOW;
-  } else if (curentFrameRate_ != POOR) {
-    displayLink_.preferredFrameRateRange = FrameRateRange::POOR;
+  if (currentFrameRate_.preferred != frameRateRange.preferred) {
+    displayLink_.preferredFrameRateRange = frameRateRange;
+    currentFrameRate_ = frameRateRange;
   }
 }