improvements and actualization

src/jsMain/kotlin/dev/inmo/saucenaoapi/utils/ActualMPPFile.kt

@@ -0,0 +1,18 @@
+package dev.inmo.saucenaoapi.utils
+
+import io.ktor.http.ContentType
+import io.ktor.utils.io.core.ByteReadPacket
+import io.ktor.utils.io.core.Input
+import org.khronos.webgl.Int8Array
+import org.w3c.files.File
+import org.w3c.files.FileReaderSync
+
+actual typealias MPPFile = File
+
+actual val MPPFile.input: Input
+    get() {
+        val reader = FileReaderSync()
+        return ByteReadPacket(Int8Array(reader.readAsArrayBuffer(this)) as ByteArray)
+    }
+actual val MPPFile.contentType: ContentType
+    get() = ContentType.parse(type)