Display list of games (#16)

Co-authored-by: Maxime Adler <madler@sqli.com>
Reviewed-on: #16

src/GameIdeas/Client/GameIdeas.BlazorApp/Helpers/GameHelper.cs

@@ -9,4 +9,17 @@ public static class GameHelper
         game.CreationUserId = 100000;
         game.CreationDate = DateTime.Now;
     }
+
+    public static string GetInterestColor(int interest, int maxInterest)
+    {
+        int firstTier = (int)Math.Floor(0.33 * maxInterest);
+        int secondTier = (int)Math.Ceiling(0.66 * maxInterest);
+
+        return interest switch
+        {
+            int x when x <= firstTier => "--red",
+            int x when x >= secondTier => "--green",
+            _ => "--yellow",
+        };
+    }
 }