Fix relay signal indicator, properly show how many relays you are connected to

Changelog-Fixed: Fix relay signal indicator, properly show how many relays you are connected to

damus/Views/Relays/SignalView.swift

@@ -0,0 +1,34 @@
+//
+//  SignalView.swift
+//  damus
+//
+//  Created by William Casarin on 2023-04-14.
+//
+
+import SwiftUI
+
+struct SignalView: View {
+    let state: DamusState
+    @ObservedObject var signal: SignalModel
+    
+    var body: some View {
+        Group {
+            if signal.signal != signal.max_signal {
+                NavigationLink(destination: RelayConfigView(state: state)) {
+                    Text("\(signal.signal)/\(signal.max_signal)", comment: "Fraction of how many of the user's relay servers that are operational.")
+                        .font(.callout)
+                        .foregroundColor(.gray)
+                }
+            } else {
+                Text("")
+            }
+        }
+                                        
+    }
+}
+
+struct SignalView_Previews: PreviewProvider {
+    static var previews: some View {
+        SignalView(state: test_damus_state(), signal: SignalModel(signal: 5, max_signal: 10))
+    }
+}