Fixed graceful exit stopping client from starting again

Author: codemunkie15

src/ReolinkRestart/ReolinkClient/IReolinkClientService.cs

@@ -4,7 +4,7 @@ public interface IReolinkClientService
     {
         void Start();
 
-        void Terminate();
+        void Terminate(bool waitForExit = false);
 
         bool IsClientRunning();
 

src/ReolinkRestart/ReolinkClient/ReolinkClientService.cs

@@ -26,10 +26,16 @@ public void Start()
             }
         }
 
-        public void Terminate()
+        public void Terminate(bool waitForExit = false)
         {
             var process = GetClientProcess();
+
             process?.CloseMainWindow();
+
+            if (waitForExit)
+            {
+                process?.WaitForExit();
+            }
         }
 
         public bool IsClientRunning()

src/ReolinkRestart/ReolinkRestartService.cs

@@ -36,7 +36,7 @@ public void Start()
         private void RestartTimer_Elapsed(object? sender, ElapsedEventArgs e)
         {
             SetNextRestartAtUtc();
-            reolinkClientService.Terminate();
+            reolinkClientService.Terminate(true);
             reolinkClientService.Start();
         }