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/Screens/AnalyticsPromptScreen/View/AnalyticsPromptScreen.swift

@@ -49,7 +49,6 @@ struct AnalyticsPromptScreen: View {
                 .font(.compound.bodyLG)
                 .multilineTextAlignment(.center)
                 .foregroundColor(.compound.textSecondary)
-                .tint(.compound.textLinkExternal)
             
             Divider()
                 .overlay { Color.compound._borderRowSeparator }