Default Icon and Feed Menu Customization

I know this is kind of basic but very important to some of us because some of our clients are requesting it.

1. One of my client requested a custom Icon sets and wants the darkmode, search, notification, chat and feed icon changed. Apart from being able to change those icons, please allow the use of svg icon upload.
2. My client wants me to remove the feed menu from the Top Links (At Sidebar) or replace it since it already appeared at the top navigation on desktop view. It is a repeated menu and not necessary.
3. For some reasons she wants me to make the All Spaces the first page you see when you visit the portal and not the feed page.

You all know what they say about customers? They are always right no matter now you try to convince them.

I will appreciate if this can be considered Shahjahan Jewel