Fix #227, Switch stubs error

In the class Activator method activate, the conditional expression was omitted so that the variable versions is always a list with elements of the form "key - value".

src/activator.mts

@@ -1122,9 +1122,7 @@ export default class Activator {
             // Map each value to "key - value" and push to resultArray
             versions.push(
               ...values.map(value =>
-                Object.keys(availableStubVersions).length > 1
-                  ? `${stubPortToDisplayString(key)} - ${value}`
-                  : value
+                `${stubPortToDisplayString(key)} - ${value}`
               )
             );
           });