Update data request file naming conventions

[mighabana]

Hi,

I frequently export my Spotify data from the privacy page to extract my account data and extended streaming history. A small pain point that I often encounter is having to rename the file every time I get a new extract since every extract is named `my_spotify_data.zip` regardless of when I extracted it or the type of data that is extracted.

It would be great if the naming convention could be updated to something like `<data_type>_<timestamp>.zip` where the data type is either "account_data", "streaming_history" or "technical_log" and the timestamp could be in the form of YYYYMMDDTHHMMSS, representing the cutoff timestamp for the last record in the file or when the data extracted from the database.