Use AndroidX use extension function instead of Kotlin built-in one

The Kotlin built-in `use` extension function applies to `AutoCloseable` only, and throws an error if the object it's being called on is not an `AutoCloseable`. This causes `OnScreenView` to fail to inflate on SDK < 31 as it retrieved the current theme primary color with a `TypedArray`, which only implements `AutoCloseable` since SDK 31 (Android 12).
The AndroidX core library provides a `use` extension function that applies to `TypeArray` instead of `AutoCloseable` so the fix is just a simple import.

app/src/main/java/emu/skyline/input/onscreen/OnScreenButton.kt

@@ -16,6 +16,7 @@ import android.graphics.drawable.GradientDrawable
 import android.graphics.drawable.LayerDrawable
 import android.util.TypedValue
 import androidx.core.content.ContextCompat
+import androidx.core.content.res.use
 import emu.skyline.R
 import emu.skyline.input.ButtonId
 import kotlin.math.roundToInt

app/src/main/java/emu/skyline/input/onscreen/OnScreenControllerView.kt

@@ -21,6 +21,7 @@ import android.view.MotionEvent
 import android.view.View
 import android.view.View.OnTouchListener
 import androidx.annotation.IntRange
+import androidx.core.content.res.use
 import emu.skyline.R
 import emu.skyline.input.ButtonId
 import emu.skyline.input.ButtonState

app/src/main/java/emu/skyline/input/onscreen/OnScreenItemDefinitions.kt

@@ -13,6 +13,7 @@ import android.graphics.Rect
 import android.graphics.RectF
 import android.graphics.Typeface
 import android.os.SystemClock
+import androidx.core.content.res.use
 import androidx.core.graphics.minus
 import emu.skyline.R
 import emu.skyline.input.ButtonId