browser UTF-8 decoder for [patient name]

[AntonOnyshch]

PatientName tag - (0010,0010) doesn't show its value correctly, because of text decoder i believe.

Pseudo TS solution code:

function getProperPatientName(byteArray: Uint8Array, tagOffset: number, tagLength: number): string {
    const decoder = new TextDecoder(); // default 'utf-8' or 'utf8'
    const tagValueBuffer = new Uint8Array(byteArray.buffer, tagOffset, tagLength);
    
    return decoder.decode(tagValueBuffer);
}