PathUtil: Set default downloads to internal cache directory

This allows system to automatically free up space when required as well as
users to delete it manually from the app info settings without wiping out
aurora store specific configuration.

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/src/main/java/com/aurora/store/util/PathUtil.kt

@@ -32,7 +32,7 @@ object PathUtil {
     private const val SPOOF = "SpoofConfigs"
 
     fun getDownloadDirectory(context: Context): File {
-        return File(context.filesDir, DOWNLOADS)
+        return File(context.cacheDir, DOWNLOADS)
     }
 
     private fun getPackageDirectory(context: Context, packageName: String): File {