[FEATURES REQUEST] trim down quick setting icon's tray

[JE-Amouel]

Hi,
your extension is a great improvement according desired user's desktop's layout, and i like 👍

To start I would like to talk about the origin of the functionality request,
It turns out that I work more on a PC, and therefore a fairly small screen, so I have to manage the screen space at my disposal and therefore I have to choose the right dock and panel layout to be able to work correctly, therefore I chose a lateral layout for my panel (placed on the left of my screen), this also means that I have to carefully choose what I decide to display in my panel or not, and it turns out that until now the most big challenge is to reduce the space that occupies the tray icon of gnome quick setting, I would like to have the possibility of having only the icons of my choice which appear.

Would it be possible to add an option which selects which icons appear and which not?
my goal here is to only have the battery icon and the audio icon.

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this is good ✔️

this is not good ⛔

thanks