Fix CodeQL alerts in dropdown spinner and resource lookup

Agent-Logs-Url: https://github.com/trimble-oss/modus-mobile-maui-components/sessions/dd073a81-d003-484c-b344-dbbd050213b9

Co-authored-by: rthanga1 <60956922+rthanga1@users.noreply.github.com>

Author: Copilot

Trimble.Modus.Components/Controls/DropDown/TMDropDown.xaml.cs

@@ -201,7 +201,7 @@ private void OnSelected(object sender, SelectedItemChangedEventArgs e)
         var newItem = e.SelectedItem;
         var newIndex = e.SelectedItemIndex;
 
-        // Always update (even if newItem is null – that represents clearing)
+        // Always update (even if newItem is null � that represents clearing)
         SelectedItem = newItem;
         SelectedIndex = newIndex;
 
@@ -332,10 +332,10 @@ private void UpdateListBorderHeight(IEnumerable items)
 
             if (itemCount < 4)
             {
-                desiredHeight = itemCount * 56;
-                margin = new Thickness(0, ((itemCount - 1) * 56) + 4, 10, 0);
+                desiredHeight = itemCount * 56.0;
+                margin = new Thickness(0, ((itemCount - 1) * 56.0) + 4.0, 10, 0);
 #if WINDOWS
-                margin = new Thickness(0, ((itemCount - 1) * 56) + 30, 10, 0);
+                margin = new Thickness(0, ((itemCount - 1) * 56.0) + 30.0, 10, 0);
 #endif
             }
         }

Trimble.Modus.Components/Controls/TMSpinner/TMSpinner.cs

@@ -103,7 +103,7 @@ private static void OnSpinnerSizeChanged(BindableObject bindable, object oldValu
         {
             if (bindable is TMSpinner tmSpinner)
             {
-                Console.WriteLine("Spinner Size Changed", (Size)newValue);
+                Console.WriteLine($"Spinner Size Changed: {(Size)newValue}");
                 switch ((Size)newValue)
                 {
                     case Size.XSmall:

Trimble.Modus.Components/Helpers/ResourceDictionary.cs

@@ -4,22 +4,26 @@ public static class ResourcesDictionary
 {
     public static Color GetColor(string styleKey)
     {
-        if (Application.Current.Resources.ContainsKey(styleKey))
+        if (Application.Current?.Resources is ResourceDictionary resources &&
+            resources.TryGetValue(styleKey, out var applicationResource) &&
+            applicationResource is Color applicationColor)
         {
-            return Application.Current.Resources[styleKey] as Color;
+            return applicationColor;
         }
-        else
+
+        ResourceDictionary style = new Styles.LightThemeColors();
+        if (Application.Current?.RequestedTheme == AppTheme.Dark)
+        {
+            style = new Styles.DarkThemeColors();
+        }
+
+        try
+        {
+            return style[styleKey] as Color ?? Colors.Transparent;
+        }
+        catch (KeyNotFoundException)
         {
-            ResourceDictionary style = new Styles.LightThemeColors();
-            if (Application.Current.RequestedTheme == AppTheme.Dark)
-            {
-                style = new Styles.DarkThemeColors();
-            }
-            if (style.ContainsKey(styleKey))
-            {
-                return style[styleKey] as Color;
-            }
+            return Colors.Transparent;
         }
-        return Colors.Transparent;
     }
 }