Fixed inaccurate statuses

The status label would be stuck at "Decoding replay file..." if the user clicked cancel on the open replay window. The status label would also be stuck at "Saving editing file" (which is also incorrect grammar) if a similar thing happened. These inaccuracies have been fixed in this commit.

MainWindow.xaml.cs

@@ -41,9 +41,14 @@ private async void OpenReplayButton_Click(object sender, RoutedEventArgs e)
                     $@"{Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData)}\osu!\Replays"
             };
 
-            if (openFileDialog.ShowDialog() != true) return;
+            if (openFileDialog.ShowDialog() != true)
+            {
+                SetStatusLabel.Default();
+                return;
+            }
+
             _osuReplay = ReplayDecoder.Decode(openFileDialog.FileName);
-            SetStatusLabel.Completed("Finished decoding replay!");
+            SetStatusLabel.Completed("Finished decoding replay! Now loading replay info...");
             await Task.Delay(2000);
             SetStatusLabel.Pending("Loading replay info...");
             LoadReplayInfo();
@@ -53,7 +58,8 @@ private async void LoadReplayInfo()
         {
             ReplayUsernameTextbox.Text = _osuReplay?.PlayerName;
             ComboTextbox.Text = (_osuReplay?.Combo).ToString();
-            ReplayTimestampTextBox.Text = _osuReplay?.ReplayTimestamp.ToLocalTime().ToString(CultureInfo.CurrentCulture);
+            ReplayTimestampTextBox.Text =
+                _osuReplay?.ReplayTimestamp.ToLocalTime().ToString(CultureInfo.CurrentCulture);
             IsPerfectComboCheckbox.IsChecked = _osuReplay is { PerfectCombo: true };
             _300CountTextBox.Text = _osuReplay?.Count300.ToString();
             _100CountTextBox.Text = _osuReplay?.Count100.ToString();
@@ -69,12 +75,17 @@ private async void LoadReplayInfo()
 
         private async void SaveReplayButton_Click(object sender, RoutedEventArgs e)
         {
-            if (_osuReplay == null) return;
+            if (_osuReplay == null)
+            {
+                SetStatusLabel.Error("You must open a replay before saving it!");
+                return;
+            }
+
             if (!CheckFields.CheckCombo()) return;
             if (!CheckFields.CheckJudgements()) return;
             if (!CheckFields.CheckTimestamp()) return;
 
-            SetStatusLabel.Pending("Saving editing replay...");
+            SetStatusLabel.Pending("Saving replay file...");
             SaveFileDialog saveFileDialog = new()
             {
                 Filter = "osu! Replay files (*.osr)|*.osr|All files (*.*)|*.*",
@@ -83,7 +94,11 @@ private async void SaveReplayButton_Click(object sender, RoutedEventArgs e)
                     $@"{Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData)}\osu!\Replays"
             };
 
-            if (saveFileDialog.ShowDialog() != true) return;
+            if (saveFileDialog.ShowDialog() != true)
+            {
+                SetStatusLabel.Default();
+                return;
+            }
 
             _osuReplay.PlayerName = ReplayUsernameTextbox.Text;
             _osuReplay.Combo = Convert.ToUInt16(ComboTextbox.Text);