[bug] local file media cover

[lovegaoshi]

currently local file's track.cover is set to null; reads the base64 of the ffmpeg extracted music cover; RNTP's notificationManager auto reads it from file, but sometimes its blurry. android auto fails to resolve it all together.

since we use ffmpeg, and used to have code to save current artwork into a local file; why not provide that and use it as a content resolved URI? instead of the whole convert to base64 thing?

ryanheise/audio_service#1049
https://stackoverflow.com/questions/3004713/get-content-uri-from-file-path-in-android

[lovegaoshi]

actually will be solved from KotlinAudio:

            getCachedArtworkBitmap()?.let {
                val savedBitmap = MediaStore.Images.Media.insertImage(context.contentResolver, it, "APMalbumart.png","APMalbumart.png")
                // putBitmap(MediaMetadataCompat.METADATA_KEY_ALBUM_ART, it)
                // putBitmap(MediaMetadataCompat.METADATA_KEY_DISPLAY_ICON, it)
                putString(MediaMetadataCompat.METADATA_KEY_ART_URI, savedBitmap)
            }