Adding localization for the sign in button states (#13612)

Author: filipeotero

src/DynamoCoreWpf/Properties/Resources.Designer.cs

@@ -3479,4 +3479,7 @@ In certain complex graphs or host program scenarios, Automatic mode may cause in
   <data name="PreferencesViewBetaTag" xml:space="preserve">
     <value>Beta</value>
   </data>
-</root>
+  <data name="SplashScreenSigningIn" xml:space="preserve">
+    <value>Signing In</value>
+  </data>
+</root>

src/DynamoCoreWpf/Properties/Resources.en-US.resx

@@ -3466,4 +3466,7 @@ In certain complex graphs or host program scenarios, Automatic mode may cause in
   <data name="PreferencesViewBetaTag" xml:space="preserve">
     <value>Beta</value>
   </data>
+  <data name="SplashScreenSigningIn" xml:space="preserve">
+    <value>Signing In</value>
+  </data>
 </root>

src/DynamoCoreWpf/Properties/Resources.resx

@@ -347,8 +347,7 @@ internal async void SetSignInStatus(bool status)
         {
             if (webView?.CoreWebView2 != null)
             {
-                await webView.CoreWebView2.ExecuteScriptAsync("window.setSignInStatus({" +
-                $"signInTitle: \"" + (status ? Wpf.Properties.Resources.SplashScreenSignOut : Wpf.Properties.Resources.SplashScreenSignIn).ToString() + "\"," +
+                await webView.CoreWebView2.ExecuteScriptAsync("window.setSignInStatus({" +               
                 $"signInStatus: \"" + status + "\"})");
             }
         }
@@ -365,6 +364,9 @@ await webView.CoreWebView2.ExecuteScriptAsync("window.setLabels({" +
                    $"launchTitle: \"{Wpf.Properties.Resources.SplashScreenLaunchTitle}\"," +
                    $"importSettingsTitle: \"{Wpf.Properties.Resources.ImportSettingsDialogTitle}\"," +
                    $"showScreenAgainLabel: \"{Wpf.Properties.Resources.SplashScreenShowScreenAgainLabel}\"," +
+                   $"signInTitle: \"{Wpf.Properties.Resources.SplashScreenSignIn}\"," +
+                   $"signOutTitle: \"{Wpf.Properties.Resources.SplashScreenSignOut}\"," +
+                   $"signingInTitle: \"{Wpf.Properties.Resources.SplashScreenSigningIn}\"," +
                    $"importSettingsTooltipDescription: \"{Wpf.Properties.Resources.ImportPreferencesInfo}\"" + "})");
             }
         }