Update ToolbarPlacement enum test to expect 4

Adjust the unit test to reflect an added value in the ToolbarPlacement enum. Renamed test from ToolbarPlacement_HasThreeValues to ToolbarPlacement_HasFourValues and updated the Assert from 3 to 4 in tests/Verso.Abstractions.Tests/Enums/EnumTests.cs so the test matches the enum's current values.

Author: TorreyBetts

tests/Verso.Abstractions.Tests/Enums/EnumTests.cs

@@ -10,9 +10,9 @@ public void ThemeKind_HasThreeValues()
     }
 
     [TestMethod]
-    public void ToolbarPlacement_HasThreeValues()
+    public void ToolbarPlacement_HasFourValues()
     {
-        Assert.AreEqual(3, Enum.GetValues<ToolbarPlacement>().Length);
+        Assert.AreEqual(4, Enum.GetValues<ToolbarPlacement>().Length);
     }
 
     [TestMethod]