[Feature Request]: Allow use of multiple CSV files for Styles

[MisterSeajay]

Is there an existing issue for this?

• I have searched the existing issues and checked the recent builds/commits

What would your feature do ?

As a creator of Stable Diffusion artwork I find that managing one single CSV file of styles is awkward. I would like to be able to create different collections (i.e. CSV files) of styles for use when generating images. As well as managing my own list of styles, I would like to be able to to split my own list of styles into different files, e.g. one for photographic styles, one for illustrations or paintings, etc. I would also like to be able download and use other people's lists of styles without having to merge them into my own CSV.

Proposed workflow

1. Use command line arguments to specify a wildcard in the Styles filename, e.g. "styles*.csv".
2. Styles from all CSV files matching this pattern will be loaded in the UI, grouped by source file and with markers to distinguish between each group of Styles.
3. Edits made to existing Styles will be saved back to the file the Style was loaded from.
4. New Styles will save to the default "styles.csv" file

Additional information

No UI changes, other than how the list of Styles is ordered in the drop-down, are needed.

[MisterSeajay]

#14081