Add Preset

curl --location --request POST '/presets' \
--header 'Content-Type: application/json' \
--data-raw '{
    "id": 0,
    "name": "string",
    "speaker_uuid": "string",
    "style_id": 0,
    "speedScale": 0,
    "pitchScale": 0,
    "intonationScale": 0,
    "volumeScale": 0,
    "prePhonemeLength": 0,
    "postPhonemeLength": 0,
    "pauseLength": 0,
    "pauseLengthScale": 1
}'