move more stuff out of contentview

Signed-off-by: William Casarin <jb55@jb55.com>

damus/ContentView.swift

@@ -124,25 +124,14 @@ struct ContentView: View {
         }
     }
 
-    var PostButtonContainer: some View {
-        VStack {
-            Spacer()
-
-            HStack {
-                Spacer()
-                PostButton() {
-                    self.active_sheet = .post
-                }
-            }
-        }
-    }
-    
     var PostingTimelineView: some View {
         ZStack {
             if let damus = self.damus_state {
                 TimelineView(events: $friend_events, damus: damus)
             }
-            PostButtonContainer
+            PostButtonContainer {
+                self.active_sheet = .post
+            }
         }
     }
     

damus/Views/PostButton.swift

@@ -24,3 +24,15 @@ func PostButton(action: @escaping () -> ()) -> some View {
             x: 3,
             y: 3)
 }
+
+func PostButtonContainer(action: @escaping () -> ()) -> some View {
+    return VStack {
+        Spacer()
+
+        HStack {
+            Spacer()
+            PostButton(action: action)
+        }
+    }
+}
+