Improve code readability a bit.

Author: bmarty

libraries/androidutils/src/main/kotlin/io/element/android/libraries/androidutils/media/VideoCompressorHelper.kt

@@ -27,7 +27,7 @@ class VideoCompressorHelper(
     fun getOutputSize(inputSize: Size): Size {
         val resultMajor = min(inputSize.major(), maxSize)
         val aspectRatio = inputSize.major().toFloat() / inputSize.minor().toFloat()
-        return if (inputSize.width >= inputSize.height) {
+        return if (inputSize.isLandscape()) {
             Size(resultMajor, (resultMajor / aspectRatio).roundToInt())
         } else {
             Size((resultMajor / aspectRatio).roundToInt(), resultMajor)
@@ -46,5 +46,6 @@ class VideoCompressorHelper(
     }
 }
 
-internal fun Size.major(): Int = if (width > height) width else height
-internal fun Size.minor(): Int = if (width < height) width else height
+private fun Size.isLandscape(): Boolean = width > height
+private fun Size.major(): Int = if (isLandscape()) width else height
+private fun Size.minor(): Int = if (isLandscape()) height else width