Watch: demo screenshots, wrapping reply chips, feed toolbar and inset fixes, README

Screenshots of Pair, Feed, Thread (finished, approval, question) and New
thread, taken in the Series 12 46mm simulator in demo mode.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

watch/WristCode/Views/FeedView.swift

@@ -41,6 +41,8 @@ struct FeedView: View {
             ToolbarItem(placement: .topBarTrailing) {
                 NavigationLink(value: Route.newThread) {
                     Image(systemName: "plus")
+                        .fontWeight(.bold)
+                        .foregroundStyle(.black)
                 }
                 .accessibilityLabel("New thread")
             }
@@ -61,7 +63,7 @@ struct FeedView: View {
 private extension View {
     func feedRow() -> some View {
         listRowBackground(Color.clear)
-            .listRowInsets(EdgeInsets(top: 3, leading: 0, bottom: 3, trailing: 0))
+            .listRowInsets(EdgeInsets(top: 3, leading: 4, bottom: 3, trailing: 4))
     }
 }