Icon pack subgroups

[Piripe]

Is your feature request related to a problem? Please describe.
Macro Deck gets a bit laggy when you open a large icon pack (like Fluent) and making multiple icon packs (Like Powered Steel) "pollute" a bit the website.

Describe the solution you'd like
By adding icon subgroups, it could be backward-compatible with the current format.

The first solution I can think of would be to allow the creation of folders in the root of the icon pack and all folders in the root would be detected as subgroups.
And if the pack contains no folders, the current format would be applied with the icons in the root without subgroups.

Describe alternatives you've considered
I haven't a real alternative. Maybe tags ? Adding tags on each icon, but it will be boring icon pack makers.

Or a search bar, which could be useful.