Update and enable the new bloom style on the home screen. (#4291)

* Update Compound

* Adopt the new accent colour (and gradient) tokens.

ElementX/Sources/Screens/Timeline/View/TimelineItemViews/HighlightedTimelineItemModifier.swift

@@ -23,15 +23,15 @@ private struct HighlightedTimelineItemModifier: ViewModifier {
             .background {
                 if isHighlighted {
                     VStack(spacing: 0) {
-                        Color.compound._bgBubbleHighlighted
-                        LinearGradient(colors: [.compound._bgBubbleHighlighted, .clear],
+                        Color.compound.gradientSubtleStop1
+                        LinearGradient(gradient: .compound.subtle,
                                        startPoint: .top,
                                        endPoint: .bottom)
                             .frame(maxHeight: 200)
                             .layoutPriority(1)
                     }
                     .overlay(alignment: .top) {
-                        Color.compound.bgAccentRest
+                        Color.compound.borderAccentSubtle
                             .frame(height: 1)
                     }
                 }

ElementX/Sources/Screens/Timeline/View/TimelineItemViews/TimelineStartRoomTimelineView.swift

@@ -46,7 +46,7 @@ struct TimelineStartRoomTimelineView: View {
         .padding(.top, 16)
         .padding(.bottom, 8)
         .padding(.horizontal, 16)
-        .highlight(borderColor: .compound.borderInfoSubtle, primaryColor: .compound.bgInfoSubtle, secondaryColor: Color.clear)
+        .highlight(gradient: .compound.info, borderColor: .compound.borderInfoSubtle)
     }
     
     private var title: String {