fix(init): restore initialValues for performanceMonitoring in multiselect

The migration from clack to WizardUI accidentally dropped the
initialValues parameter that pre-selected Tracing in the feature picker.

Author: MathurAditya724

src/lib/init/interactive.ts

@@ -143,6 +143,7 @@ async function handleMultiSelect(
         ...(hint ? { hint } : {}),
       };
     }),
+    initialValues: optional.filter((f) => f === "performanceMonitoring"),
     required: false,
   });
 

test/lib/init/interactive.test.ts

@@ -297,7 +297,7 @@ describe("handleMultiSelect", () => {
       "performanceMonitoring",
       "sourceMaps",
     ]);
-    expect(multiselectCall?.initialValues).toBeUndefined();
+    expect(multiselectCall?.initialValues).toEqual(["performanceMonitoring"]);
   });
 });