Replace getZoomedFov with a lighter variant

It turns out you can't really lose precision with floats!
(no this won't fix tweakeroo, tweakeroo needs fixing)

src/main/java/io/github/ennuil/ok_zoomer/mixin/common/GameRendererMixin.java

@@ -1,19 +1,17 @@
 package io.github.ennuil.ok_zoomer.mixin.common;
 
 import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
+import com.llamalad7.mixinextras.injector.ModifyReturnValue;
 import com.llamalad7.mixinextras.sugar.Local;
-import com.llamalad7.mixinextras.sugar.ref.LocalFloatRef;
 import io.github.ennuil.ok_zoomer.config.OkZoomerConfigManager;
 import io.github.ennuil.ok_zoomer.zoom.Zoom;
-import net.minecraft.client.Camera;
 import net.minecraft.client.renderer.GameRenderer;
 import net.minecraft.util.Mth;
 import org.quiltmc.loader.api.minecraft.ClientOnly;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
 @ClientOnly
 @Mixin(GameRenderer.class)
@@ -49,22 +47,13 @@ private int modifyCulling(int original) {
 		}
 	}
 
-	@Inject(
-		method = "getFov",
-		at = @At(
-			value = "INVOKE",
-			target = "Lnet/minecraft/client/Camera;getEntity()Lnet/minecraft/world/entity/Entity;",
-			ordinal = 0
-		)
-	)
-	private void getZoomedFov(Camera activeRenderInfo, float partialTicks, boolean useFOVSetting, CallbackInfoReturnable<Float> cir, @Local(ordinal = 1) LocalFloatRef internalFov) {
-		float zoomedFov = internalFov.get();
-
-		if (Zoom.isTransitionActive()) {
-			zoomedFov = Zoom.getTransitionMode().applyZoom(zoomedFov, partialTicks);
+	@ModifyReturnValue(method = "getFov", at = @At(value = "RETURN", ordinal = 1))
+	private float modifyFov(float original, @Local(argsOnly = true) float partialTicks) {
+		if (!Zoom.isTransitionActive()) {
+			return original;
+		} else {
+			return Zoom.getTransitionMode().applyZoom(original, partialTicks);
 		}
-
-		internalFov.set(zoomedFov);
 	}
 
 	@ModifyExpressionValue(method = "bobView", at = @At(value = "INVOKE", target = "Lnet/minecraft/util/Mth;lerp(FFF)F"))