Rework top panel

Rework the top panel to be smoother and more consistent feeling, as well as updating the appearance based on this mockup:

Changes:

• Refactor the panel containment so that it is easier for new contributors to understand the code
• Fix all binding loops
• Use clip in order to prevent delegates from showing outside of the quicksettings panel
• Cap first swipe to just showing the pinned
• Rework colours to be more vibrant, and don't use opacity on quicksettings panel
• Add shadowed rectangle footer on quicksettings panel to be similar to the lockscreen (it also looks nicer imo)

WIP (oops):

• The quicksettings delegates expanding widths as they go from pinned -> full height causes infinite binding loops jumping every~where (currently disabled)
• For some reason the notifications panel no longer shows up 😭
• There is a deadzone in the middle of the screen for some reason where the flickable doesn't pick up flicks (invisible notification stealing maybe?)
• Figure out how to get top indicators and time on top of the quicksettings panel when it's open (duplicating may cause some unintended consequences)