nav: use back chevron in more places

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

damus/Views/CreateAccountView.swift

@@ -101,6 +101,17 @@ struct BackNav: View {
     }
 }
 
+struct BackNavBasic: View {
+    @Environment(\.dismiss) var dismiss
+    
+    var body: some View {
+        Image(systemName: "chevron.backward")
+        .onTapGesture {
+            self.dismiss()
+        }
+    }
+}
+
 extension View {
     func placeholder<Content: View>(
         when shouldShow: Bool,

damus/Views/DMChatView.swift

@@ -117,6 +117,8 @@ struct DMChatView: View {
             }
         }
         .toolbar { Header }
+        .navigationBarBackButtonHidden(true)
+        .navigationBarItems(leading: BackNavBasic())
     }
 }
 

damus/Views/ProfileView.swift

@@ -147,6 +147,8 @@ struct ProfileView: View {
             followers.unsubscribe()
             // our profilemodel needs a bit more help
         }
+        .navigationBarBackButtonHidden(true)
+        .navigationBarItems(leading: BackNavBasic())
     }
 }
 

damus/Views/SearchView.swift

@@ -25,6 +25,8 @@ struct SearchView: View {
             .onDisappear() {
                 search.unsubscribe()
             }
+            .navigationBarBackButtonHidden(true)
+            .navigationBarItems(leading: BackNavBasic())
     }
 }