fix: Make volume gesture the same sensitivity as brightness

Used to be dependent on the amount of volume levels of the device

Author: jmir1

app/src/main/java/eu/kanade/tachiyomi/ui/player/controls/GestureHandler.kt

@@ -220,8 +220,8 @@ fun GestureHandler(
                 var originalMPVVolume = currentMPVVolume
                 var originalBrightness = currentBrightness
                 val brightnessGestureSens = 0.001f
-                val volumeGestureSens = 0.03f
-                val mpvVolumeGestureSens = 0.02f
+                val volumeGestureSens = 0.001f * viewModel.maxVolume
+                val mpvVolumeGestureSens = 0.001f * volumeBoostingCap
                 val isIncreasingVolumeBoost: (Float) -> Boolean = {
                     volumeBoostingCap > 0 &&
                         currentVolume == viewModel.maxVolume &&