consume available keys before allowing user to cancel restart

prevents any available keys from automatically cancelling a restart

src/MinEdLauncher/App.fs

@@ -87,6 +87,7 @@ let rec launchProduct proton processArgs restart productName product =
         let cancelRestart() =
             let interval = 250
             let stopwatch = Stopwatch()
+            Console.consumeAvailableKeys()
             stopwatch.Start()
             while Console.KeyAvailable = false && stopwatch.ElapsedMilliseconds < timeout do
                 System.Threading.Thread.Sleep interval

src/MinEdLauncher/Extensions.fs

@@ -455,6 +455,9 @@ module Console =
         let password = readMask [] |> Seq.rev |> String.Concat
         Console.WriteLine ()
         password
+    let consumeAvailableKeys () =
+        while Console.KeyAvailable do
+            Console.ReadKey() |> ignore
 
 module Regex =
     open System.Text.RegularExpressions