[PTRun]Add setting for different trigonometric units in Calculator (#36717)

* Added angle units to PowerToys Run Calculator plugin.

* Update Resources.resx

* Added GitHub SpellCheck rule for 'gradians'.

---------

Co-authored-by: Heiko <61519853+htcfreek@users.noreply.github.com>

src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.Calculator/CalculateEngine.cs

@@ -23,6 +23,13 @@ namespace Microsoft.PowerToys.Run.Plugin.Calculator
 
         public const int RoundingDigits = 10;
 
+        public enum TrigMode
+        {
+            Radians,
+            Degrees,
+            Gradians,
+        }
+
         /// <summary>
         /// Interpret
         /// </summary>
@@ -52,6 +59,9 @@ namespace Microsoft.PowerToys.Run.Plugin.Calculator
 
             input = CalculateHelper.FixHumanMultiplicationExpressions(input);
 
+            // Modify trig functions depending on angle unit setting
+            input = CalculateHelper.UpdateTrigFunctions(input, Main.GetTrigMode());
+
             var result = _magesEngine.Interpret(input);
 
             // This could happen for some incorrect queries, like pi(2)