App Polish (#1098)

* App polish

- Skeleton avatar colour on app switching.
- Bug report icon and string.
- Semi-bold font on room list timestamps.
- Room attachments button spacing and alignment.
- Replace link tint with semi-bold font in AnalyticsSettingsScreen.
- Semi-bold font on Invites button.
- Add padding to media attachment sheet.
- Message composer header layout tweaks.
- Remove indicator after changing homeserver with an MXID.
- Change copy permalink string.
- Formatting of link in Analytics Prompt.
- Remove indicator after changing homeserver with an MXID.
- Change copy permalink string.
- Formatting of link in Analytics Prompt.
- Only semi-bold the room timestamp when unread.
- Tweak the colour of the date separator.
- Add activity indicator to toast style user indicator.

ElementX/Sources/Other/SwiftUI/Layout/FixedIconSizeLabelStyle.swift

@@ -19,8 +19,10 @@ import SwiftUI
 struct FixedIconSizeLabelStyle: LabelStyle {
     @ScaledMetric private var iconSize = 24.0
     
+    var spacing: CGFloat = 16
+    
     func makeBody(configuration: Configuration) -> some View {
-        HStack {
+        HStack(spacing: spacing) {
             configuration
                 .icon
                 .frame(width: iconSize, height: iconSize)